772r 872r7 972r7b a82r b82r7
wy3r7 xy3r7b yy3r zy3r7 0y3r7b
lp4r7b mp4r np4r7 op4r7b pp4r
ag5r bg5r7 cg5r7b dg5r eg5r7
z65r7 065r7b 165r 265r7 365r7b