71i1 61i1ts 51i1t 41i1 31i1ts
ibi1ts hbi1t gbi1 fbi1ts ebi1t
tkh1t skh1 rkh1ts qkh1t pkh1
4tg1 3tg1ts 2tg1t 1tg1 0tg1ts
f3f1ts e3f1t d3f1 c3f1ts b3f1t