D3LR4GTKRC3RKLTLFY3PB265YI3GR7ELCCB4U2STH3YEH4BZI6KAC
33ANCTMFGDEI4CDYZCDERYDSWLL2UVXUVAX3GA75RY5VZWYMQSLQC
KDF6FJRVF72L274BEUJCTUKRFMNL6BDZMTVKDPEYGFX4TC3YOVSQC
SXEYMYF7P4RZMZ46WPL4IZUTSQ2ATBWYZX7QNVMS3SGOYXYOHAGQC
if len > 8 { return None; }
if len > 8 {
return None;
}