78r2 88r2s 98r2s8 a9r2 b9r2s
wzs2s xzs2s8 yzs2 zzs2s 0zs2s8
lqt2s8 mqt2 nqt2s oqt2s8 pqt2
ahu2 bhu2s chu2s8 dhu2 ehu2s
z7u2s 07u2s8 17u2 27u2s 37u2s8