ddtd edtdl fdtdlp gdtd hdtdl
23tdl 33tdlp 43td 53tdl 63tdlp
ruudlp suud tuudl uuudlp vuud
glvd hlvdl ilvdlp jlvd klvdl
5bwdl 6bwdlp 7bwd 8bwdl 9bwdlp