rdh126 sdh1 tdh12 udh126 vdh1
g4h1 h4h12 i4h126 j4h1 k4h12
5ui12 6ui126 7ui1 8ui12 9ui126
ulj126 vlj1 wlj12 xlj126 ylj1
jck1 kck12 lck126 mck1 nck12