8bnnc 9bnncb acnn bcnnc ccnncb
x2nncb y2nn z2nnc 02nncb 12nn
mton ntonc otoncb pton qtonc
bkpnc ckpncb dkpn ekpnc fkpncb
0aqncb 1aqn 2aqnc 3aqncb 4aqn