ltbk48 mtbk ntbk4 otbk48 ptbk

akck bkck4 ckck48 dkck ekck4

zadk4 0adk48 1adk 2adk4 3adk48

o1dk48 p1dk q1dk4 r1dk48 s1dk

dsek esek4 fsek48 gsek hsek4