63k210 73k2 83k21 93k210 a4k2
vul2 wul21 xul210 yul2 zul21
klm21 llm210 mlm2 nlm21 olm210
9bn210 acn2 bcn21 ccn210 dcn2
y2n2 z2n21 02n210 12n2 22n21