LE5S25TSDLEYUHK7WQINNHJGSZNFR5XBFXSV567X4ZSVGRVT3UFQC
QWIXQSP22VFGDT23HBBOAHSCPQBWYJHBDD3SDECPB6J6WWKKYLLAC
S4P2B3FPF57HPHTIAYGMPCVKB7573IB5ZBKNXVBTB6ICCPF55WNQC
main.matrix.joined_rooms()