tefvm sefv refvmg qefvm pefv

4nev 3nevmg 2nevm 1nev 0nevmg

fxdvmg exdvm dxdv cxdvmg bxdvm

q6cvm p6cv o6cvmg n6cvm m6cv

1fcv 0fcvmg zfcvm yfcv xfcvmg