v2id w2idx x2idxm y2id z2idx
ktjdx ltjdxm mtjd ntjdx otjdxm
9jkdxm akkd bkkdx ckkdxm dkkd
yald zaldx 0aldxm 1ald 2aldx
n1ldx o1ldxm p1ld q1ldx r1ldxm