pgsk qgsk4 rgsk4x sgsk tgsk4

e7sk4 f7sk4x g7sk h7sk4 i7sk4x

3xtk4x 4xtk 5xtk4 6xtk4x 7xtk

souk touk4 uouk4x vouk wouk4

hfvk4 ifvk4x jfvk kfvk4 lfvk4x