b3k25 c3k25o d3k2 e3k25 f3k25o
0tl25o 1tl2 2tl25 3tl25o 4tl2
pkm2 qkm25 rkm25o skm2 tkm25
ebn25 fbn25o gbn2 hbn25 ibn25o
31n25o 41n2 51n25 61n25o 71n2