b4nbs a4nb 93nbs2 83nbs 73nb
mdnb ldnbs2 kdnbs jdnb idnbs2
xmmbs2 wmmbs vmmb ummbs2 tmmbs
8vlbs 7vlb 6vlbs2 5vlbs 4vlb
j5kb i5kbs2 h5kbs g5kb f5kbs2