d7qk e7qkd f7qkd1 g7qk h7qkd
2xrkd 3xrkd1 4xrk 5xrkd 6xrkd1
roskd1 sosk toskd uoskd1 vosk
gftk hftkd iftkd1 jftk kftkd
55tkd 65tkd1 75tk 85tkd 95tkd1