b3u21 a3u2 92u21n 82u21 72u2

mcu2 lcu21n kcu21 jcu2 icu21n

xlt21n wlt21 vlt2 ult21n tlt21

8us21 7us2 6us21n 5us21 4us2

j4r2 i4r21n h4r21 g4r2 f4r21n