id1b1q jd1b kd1b1 ld1b1q md1b
731b 831b1 931b1q a41b b41b1
wu2b1 xu2b1q yu2b zu2b1 0u2b1q
ll3b1q ml3b nl3b1 ol3b1q pl3b
ac4b bc4b1 cc4b1q dc4b ec4b1