apqc bpqcr cpqcr3 dpqc epqcr

zfrcr 0frcr3 1frc 2frcr 3frcr3

o6rcr3 p6rc q6rcr r6rcr3 s6rc

dxsc exscr fxscr3 gxsc hxscr

2ntcr 3ntcr3 4ntc 5ntcr 6ntcr3