to41n so41 ro41n8 qo41n po41

4x31 3x31n8 2x31n 1x31 0x31n8

f721n8 e721n d721 c721n8 b721n

qg21n pg21 og21n8 ng21n mg21

1p11 0p11n8 zp11n yp11 xp11n8