| A55 -> { light = vx21; colour = epx400; durable = ultra }
  | A45 -> { light = vx21; colour = vx21; durable = ultra }

  | A55 -> { light = vx21; colour = List.concat [epx200; epx400]; durable = ultra }
  | A45 -> { light = vx21; colour = List.concat [epx200; epx400]; durable = ultra }

        colour = List.concat [ vx21; vx42 ];

        colour = List.concat [ epx200; epx400 ];

  | C45 ->

 | C45 ->

        colour = List.concat [ vx07; epx200 ];

        colour = epx200;

      { fabric = "Golden Dazy EPX200"; colour = "#fec93f"; in_stock = true };

      List.nth epx200 5; (* golden dazy *)

      { fabric = "Brick Red EPX200"; colour = "#820210"; in_stock = true };

      List.nth epx200 3; (* brick red *)

      { fabric = "Tropic Teal EPX200"; colour = "#108b99"; in_stock = true };

      List.nth epx200 8; (* tropic teal *)

      { fabric = "Bright Blue EPX200"; colour = "#0a5bc4"; in_stock = true };

      List.nth epx200 9; (* bright blue *)

let check_back_panel state (g : goal) =
  let p = panel_match state.pack |> get_fabric_by_goal g in
  if List.mem state.back_panel p then state.back_panel else List.hd p

let check_back_panel state (g : goal) (p : pack) =
  let pan = panel_match p |> get_fabric_by_goal g in
  if List.memq state.back_panel pan then state.back_panel else List.hd pan

let check_side_panels state (g : goal) =
  let p = panel_match state.pack |> get_fabric_by_goal g in
  if List.mem state.side_panels p then state.side_panels else List.hd p

let check_side_panels state (g : goal) (p : pack) =
  let pan = panel_match p |> get_fabric_by_goal g in
  if List.memq state.side_panels pan then state.side_panels else List.hd pan

let check_pockets state (g : goal) =
  let p = pocket_match state.pack |> get_fabric_by_goal g in
  if List.mem state.side_pockets p then state.side_pockets else List.hd p

let check_pockets state (g : goal) (p : pack) =
  let pan = pocket_match p |> get_fabric_by_goal g in
  if List.memq state.side_pockets pan then state.side_pockets else List.hd pan

let check_rolltop state (g : goal) =
  let r = rolltop_match state.pack |> get_fabric_by_goal g in
  if List.mem state.rolltop r then state.rolltop else List.hd r

let check_rolltop state (g : goal) (p : pack) =
  let r = rolltop_match p |> get_fabric_by_goal g in
  if List.memq state.rolltop r then state.rolltop else List.hd r

        side_panels = check_side_panels state Light;
        side_pockets = check_pockets state Light;
        back_panel = check_back_panel state Light;
        rolltop = check_rolltop state Light;

        side_panels = check_side_panels state Light state.pack;
        side_pockets = check_pockets state Light state.pack;
        back_panel = check_back_panel state Light state.pack;
        rolltop = check_rolltop state Light state.pack;

        side_panels = check_side_panels state Colour;
        side_pockets = check_pockets state Colour;
        back_panel = check_back_panel state Colour;
        rolltop = check_rolltop state Colour;

        side_panels = check_side_panels state Colour state.pack;
        side_pockets = check_pockets state Colour state.pack;
        back_panel = check_back_panel state Colour state.pack;
        rolltop = check_rolltop state Colour state.pack;

        side_panels = check_side_panels state Durable;
        side_pockets = check_pockets state Durable;
        back_panel = check_back_panel state Durable;
        rolltop = check_rolltop state Durable;

        side_panels = check_side_panels state Durable state.pack;
        side_pockets = check_pockets state Durable state.pack;
        back_panel = check_back_panel state Durable state.pack;
        rolltop = check_rolltop state Durable state.pack;

  | Classic -> { state with style = Classic }
  | Alpine -> { state with style = Alpine }

 | Classic ->
      {
        state with
        style = Classic;
        side_panels = check_side_panels state state.goal state.pack;
        side_pockets = check_pockets state state.goal state.pack;
        back_panel = check_back_panel state state.goal state.pack;
        rolltop = check_rolltop state state.goal state.pack;
      }
  | Alpine ->
      {
        state with
        style = Alpine;
        side_panels = check_side_panels state state.goal state.pack;
        side_pockets = check_pockets state state.goal state.pack;
        back_panel = check_back_panel state state.goal state.pack;
        rolltop = check_rolltop state state.goal state.pack;
      }

        side_panels = check_side_panels state state.goal;
        side_pockets = check_pockets state state.goal;
        back_panel = check_back_panel state state.goal;
        rolltop = check_rolltop state state.goal;
      }

        side_panels = check_side_panels state state.goal C65;
        side_pockets = check_pockets state state.goal C65;
        back_panel = check_back_panel state state.goal C65;
        rolltop = check_rolltop state state.goal C65;      }

        side_panels = check_side_panels state state.goal;
        side_pockets = check_pockets state state.goal;
        back_panel = check_back_panel state state.goal;
        rolltop = check_rolltop state state.goal;

        side_panels = check_side_panels state state.goal C55;
        side_pockets = check_pockets state state.goal C55;
        back_panel = check_back_panel state state.goal C55;
        rolltop = check_rolltop state state.goal C55;

        side_panels = check_side_panels state state.goal;
        side_pockets = check_pockets state state.goal;
        back_panel = check_back_panel state state.goal;
        rolltop = check_rolltop state state.goal;

        side_panels = check_side_panels state state.goal C45;
        side_pockets = check_pockets state state.goal C45;
        back_panel = check_back_panel state state.goal C45;
        rolltop = check_rolltop state state.goal C45;

        side_panels = check_side_panels state state.goal;
        side_pockets = check_pockets state state.goal;
        back_panel = check_back_panel state state.goal;
        rolltop = check_rolltop state state.goal;

        side_panels = check_side_panels state state.goal A65;
        side_pockets = check_pockets state state.goal A65;
        back_panel = check_back_panel state state.goal A65;
        rolltop = check_rolltop state state.goal A65;

        side_panels = check_side_panels state state.goal;
        side_pockets = check_pockets state state.goal;
        back_panel = check_back_panel state state.goal;
        rolltop = check_rolltop state state.goal;

        side_panels = check_side_panels state state.goal A55;
        side_pockets = check_pockets state state.goal A55;
        back_panel = check_back_panel state state.goal A55;
        rolltop = check_rolltop state state.goal A55;

        side_panels = check_side_panels state state.goal;
        side_pockets = check_pockets state state.goal;
        back_panel = check_back_panel state state.goal;
        rolltop = check_rolltop state state.goal;

        side_panels = check_side_panels state state.goal A45;
        side_pockets = check_pockets state state.goal A45;
        back_panel = check_back_panel state state.goal A45;
        rolltop = check_rolltop state state.goal A45;

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g8="\\\\",g9="\\'",g_="\\b",g$="\\t",ha="\\n",hb="\\r",h4=c_,h5="%+d",h6="% d",h7=fv,h8="%+i",h9="% i",h_="%x",h$="%#x",ia="%X",ib="%#X",ic="%o",id="%#o",ie=fO,ig="%Ld",ih="%+Ld",ii="% Ld",ij=fo,ik="%+Li",il="% Li",im="%Lx",io="%#Lx",ip="%LX",iq="%#LX",ir="%Lo",is="%#Lo",it="%Lu",iu="%ld",iv="%+ld",iw="% ld",ix=fi,iy="%+li",iz="% li",iA="%lx",iB="%#lx",iC="%lX",iD="%#lX",iE="%lo",iF="%#lo",iG="%lu",iH="%nd",iI="%+nd",iJ="% nd",iK=gm,iL="%+ni",iM="% ni",iN="%nx",iO="%#nx",iP="%nX",iQ="%#nX",iR="%no",iS="%#no",iT="%nu",iU=[0,fb],iZ=aV,i0="neg_infinity",i1=fH,i2=de,i4=[0,A,1558,4],i5="Printf: bad conversion %[",i6=[0,A,1626,39],i7=[0,A,1649,31],i8=[0,A,1650,31],i9="Printf: bad conversion %_",i_=fB,i$=f4,ja=fB,jb=f4;function
bR(a,b){if(typeof

b!=="number"&&2===b[0])return[0,[1,a[1]],b[1]];throw i(D,1)}function

b!=="number"&&2===b[0])return[0,[1,a[1]],b[1]];throw i(C,1)}function

d=bQ(a,c);if(typeof

d=bR(a,c);if(typeof

e!=="number"&&2===e[0])return[0,d[1],1,e[1]];throw i(D,1)}function

e!=="number"&&2===e[0])return[0,d[1],1,e[1]];throw i(C,1)}function

ag=a[2],x=bQ(a[1],b),e=x[2],ah=x[1];if(typeof

ag=a[2],x=bR(a[1],b),e=x[2],ah=x[1];if(typeof

y=o(ag,e[1]);return[0,[2,ah,y[1]],y[2]]}throw i(D,1);case

y=o(ag,e[1]);return[0,[2,ah,y[1]],y[2]]}throw i(C,1);case

ai=a[2],z=bQ(a[1],b),f=z[2],aj=z[1];if(typeof

ai=a[2],z=bR(a[1],b),f=z[2],aj=z[1];if(typeof

A=o(ai,f[1]);return[0,[3,aj,A[1]],A[2]]}throw i(D,1);case

A=o(ai,f[1]);return[0,[3,aj,A[1]],A[2]]}throw i(C,1);case

an=g[2],B=o(ak,h[1]);return[0,[4,al,am,an,B[1]],B[2]]}throw i(D,1);case

an=g[2],B=o(ak,h[1]);return[0,[4,al,am,an,B[1]],B[2]]}throw i(C,1);case

ar=j[2],C=o(ao,k[1]);return[0,[5,ap,aq,ar,C[1]],C[2]]}throw i(D,1);case

ar=j[2],D=o(ao,k[1]);return[0,[5,ap,aq,ar,D[1]],D[2]]}throw i(C,1);case

av=l[2],E=o(as,m[1]);return[0,[6,at,au,av,E[1]],E[2]]}throw i(D,1);case

av=l[2],E=o(as,m[1]);return[0,[6,at,au,av,E[1]],E[2]]}throw i(C,1);case

az=n[2],F=o(aw,p[1]);return[0,[7,ax,ay,az,F[1]],F[2]]}throw i(D,1);case

az=n[2],F=o(aw,p[1]);return[0,[7,ax,ay,az,F[1]],F[2]]}throw i(C,1);case

aD=q[2],G=o(aA,r[1]);return[0,[8,aB,aC,aD,G[1]],G[2]]}throw i(D,1);case

aD=q[2],G=o(aA,r[1]);return[0,[8,aB,aC,aD,G[1]],G[2]]}throw i(C,1);case

aE=a[2],H=bQ(a[1],b),t=H[2],aF=H[1];if(typeof

aE=a[2],H=bR(a[1],b),t=H[2],aF=H[1];if(typeof

I=o(aE,t[1]);return[0,[9,aF,I[1]],I[2]]}throw i(D,1);case

I=o(aE,t[1]);return[0,[9,aF,I[1]],I[2]]}throw i(C,1);case

M=b[1],aI=b[2],aJ=a[3],aK=a[1];if(aZ([0,a[2]],[0,M]))throw i(D,1);var

M=b[1],aI=b[2],aJ=a[3],aK=a[1];if(a0([0,a[2]],[0,M]))throw i(C,1);var

P=b[1],aL=b[3],aM=a[3],aN=a[2],aO=a[1],aP=[0,s(P)];if(aZ([0,s(aN)],aP))throw i(D,1);var

P=b[1],aL=b[3],aM=a[3],aN=a[2],aO=a[1],aP=[0,s(P)];if(a0([0,s(aN)],aP))throw i(C,1);var

ad=o(d,b[1]);return[0,[23,2,ad[1]],ad[2]]}throw i(D,1);default:return S(c,d,b)}}throw i(D,1)}function

ad=o(d,b[1]);return[0,[23,2,ad[1]],ad[2]]}throw i(C,1);default:return S(c,d,b)}}throw i(C,1)}function

p=c[1],A=c[2],B=a[2];if(aZ([0,a[1]],[0,p]))throw i(D,1);var

p=c[1],A=c[2],B=a[2];if(a0([0,a[1]],[0,p]))throw i(C,1);var

d=c[2],e=c[1],C=c[3],E=a[3],F=a[2],G=a[1],H=[0,s(e)];if(aZ([0,s(G)],H))throw i(D,1);var
I=[0,s(d)];if(aZ([0,s(F)],I))throw i(D,1);var

d=c[2],e=c[1],D=c[3],E=a[3],F=a[2],G=a[1],H=[0,s(e)];if(a0([0,s(G)],H))throw i(C,1);var
I=[0,s(d)];if(a0([0,s(F)],I))throw i(C,1);var

t=N(s(E),b,C),L=t[2];return[0,[9,e,d,w(t[1])],L]}break;case

t=N(s(E),b,D),L=t[2];return[0,[9,e,d,w(t[1])],L]}break;case

y=N(a[1],b,c[1]);return[0,[14,y[1]],y[2]]}break}throw i(D,1)}function

y=N(a[1],b,c[1]);return[0,[14,y[1]],y[2]]}break}throw i(C,1)}function

h=2===g?48:32,e=aS(f,h);switch(g){case
0:al(c,0,e,0,d);break;case
1:al(c,0,e,f-d|0,d);break;default:a:if(0<d){if(43!==W(c,0)&&45!==W(c,0)&&32!==W(c,0))break a;aX(e,0,W(c,0));al(c,1,e,(f-d|0)+1|0,d-1|0);break}a:if(1<d&&48===W(c,0)){if(b9!==W(c,1)&&88!==W(c,1))break a;aX(e,1,W(c,1));al(c,2,e,(f-d|0)+2|0,d-2|0);break}al(c,0,e,f-d|0,d)}return R(e)}function
a4(a,b){var

h=2===g?48:32,e=aT(f,h);switch(g){case
0:ao(c,0,e,0,d);break;case
1:ao(c,0,e,f-d|0,d);break;default:a:if(0<d){if(43!==W(c,0)&&45!==W(c,0)&&32!==W(c,0))break a;aY(e,0,W(c,0));ao(c,1,e,(f-d|0)+1|0,d-1|0);break}a:if(1<d&&48===W(c,0)){if(b9!==W(c,1)&&88!==W(c,1))break a;aY(e,1,W(c,1));ao(c,2,e,(f-d|0)+2|0,d-2|0);break}ao(c,0,e,f-d|0,d)}return R(e)}function
a5(a,b){var

g=aS(d+2|0,48);aX(g,1,W(b,1));al(b,2,g,(d-c|0)+4|0,c-2|0);return R(g)}break b;case

g=aT(d+2|0,48);aY(g,1,W(b,1));ao(b,2,g,(d-c|0)+4|0,c-2|0);return R(g)}break b;case

f=aS(d+1|0,48);aX(f,0,e);al(b,1,f,(d-c|0)+2|0,c-1|0);return R(f)}if(71<=e){if(5<e+fz>>>0)break a}else if(65>e)break a}if(c<d){var
h=aS(d,48);al(b,0,h,d-c|0,c);return R(h)}}return b}function
h8(a){var
e=aW(a),b=[0,0],k=ap(e)-1|0,q=0;if(k>=0){var

f=aT(d+1|0,48);aY(f,0,e);ao(b,1,f,(d-c|0)+2|0,c-1|0);return R(f)}if(71<=e){if(5<e+fx>>>0)break a}else if(65>e)break a}if(c<d){var
h=aT(d,48);ao(b,0,h,d-c|0,c);return R(h)}}return b}function
h3(a){var
e=aX(a),b=[0,0],k=as(e)-1|0,q=0;if(k>=0){var

f=dJ(e,h);a:{b:{c:{if(32<=f){var

f=dL(e,h);a:{b:{c:{if(32<=f){var

h=v}}if(b[1]===ap(e))var

h=v}}if(b[1]===as(e))var

c=C(b[1]);b[1]=0;var
l=ap(e)-1|0,s=0;if(l>=0){var

c=B(b[1]);b[1]=0;var
l=as(e)-1|0,s=0;if(l>=0){var

d=dJ(e,g);a:{b:{c:{if(35<=d){if(92!==d){if(dB<=d)break c;break b}}else{if(32>d){if(14<=d)break c;switch(d){case

d=dL(e,g);a:{b:{c:{if(35<=d){if(92!==d){if(dD<=d)break c;break b}}else{if(32>d){if(14<=d)break c;switch(d){case

10:u(c,b[1],92);b[1]++;u(c,b[1],dh);break a;case
13:u(c,b[1],92);b[1]++;u(c,b[1],gh);break a;default:break c}}if(34>d)break b}u(c,b[1],92);b[1]++;u(c,b[1],d);break a}u(c,b[1],92);b[1]++;u(c,b[1],48+(d/b7|0)|0);b[1]++;u(c,b[1],48+((d/10|0)%10|0)|0);b[1]++;u(c,b[1],48+(d%10|0)|0);break a}u(c,b[1],d)}b[1]++;var

10:u(c,b[1],92);b[1]++;u(c,b[1],dj);break a;case
13:u(c,b[1],92);b[1]++;u(c,b[1],ga);break a;default:break c}}if(34>d)break b}u(c,b[1],92);b[1]++;u(c,b[1],d);break a}u(c,b[1],92);b[1]++;u(c,b[1],48+(d/b7|0)|0);b[1]++;u(c,b[1],48+((d/10|0)%10|0)|0);b[1]++;u(c,b[1],48+(d%10|0)|0);break a}u(c,b[1],d)}b[1]++;var

n=R(m),o=r(n),p=aS(o+2|0,34);aB(n,0,p,1,o);return R(p)}function

n=R(m),o=r(n),p=aT(o+2|0,34);aC(n,0,p,1,o);return R(p)}function

g=bM(b),f=iZ[1];switch(a[2]){case

g=bM(b),f=iU[1];switch(a[2]){case

c=fD;break;case

c=fA;break;case

d=ej(16);a3(d,37);switch(a[1]){case

d=ej(16);a4(d,37);switch(a[1]){case

1:a3(d,43);break;default:a3(d,32)}if(8<=a[2])a3(d,35);a3(d,46);I(d,e+g);a3(d,c);return el(d)}function
bR(a,b){if(13>a)return b;var

1:a4(d,43);break;default:a4(d,32)}if(8<=a[2])a4(d,35);a4(d,46);I(d,e+g);a4(d,c);return el(d)}function
bS(a,b){if(13>a)return b;var

d=n;for(;;){if(9>=aG(b,d)+fY>>>0)h[1]++;var

d=n;for(;;){if(9>=aH(b,d)+fS>>>0)h[1]++;var

j=h[1],k=C(r(b)+((j-1|0)/3|0)|0),l=[0,0];function
e(a){aX(k,l[1],a);l[1]++;return}var

j=h[1],k=B(r(b)+((j-1|0)/3|0)|0),l=[0,0];function
e(a){aY(k,l[1],a);l[1]++;return}var

g=aG(b,c);if(9<g+fY>>>0)e(g);else{if(0===f[1]){e(95);f[1]=3}f[1]+=-1;e(g)}var

g=aH(b,c);if(9<g+fS>>>0)e(g);else{if(0===f[1]){e(95);f[1]=3}f[1]+=-1;e(g)}var

i0(a,b){switch(a){case

iV(a,b){switch(a){case

c=h_;break;case

c=h5;break;case

c=h$;break;case

c=h6;break;case

c=ib;break;case

c=h8;break;case

c=ic;break;case

c=h9;break;case

c=id;break;case

c=h_;break;case

c=ie;break;case

c=h$;break;case

c=ig;break;case

c=ia;break;case

c=ih;break;case

c=ib;break;case

c=ii;break;case

c=ic;break;case

c=ij;break;case

c=id;break;case

c=h9;break;case

c=h4;break;case

c=ia;break;default:var
c=ik}return bR(a,ch(c,b))}function
i1(a,b){switch(a){case

c=h7;break;default:var
c=ie}return bS(a,ch(c,b))}function
iW(a,b){switch(a){case

c=iA;break;case

c=iv;break;case

c=iB;break;case

c=iw;break;case

c=iD;break;case

c=iy;break;case

c=iE;break;case

c=iz;break;case

c=iF;break;case

c=iA;break;case