mcck ncck2 occk25 pcck qcck2
b3ck2 c3ck25 d3ck e3ck2 f3ck25
0tdk25 1tdk 2tdk2 3tdk25 4tdk
pkek qkek2 rkek25 skek tkek2
ebfk2 fbfk25 gbfk hbfk2 ibfk25