C22212323232133313113313331333132313331323132213231312121231333132221   >>    C2221232323213331311331333133313231333132313221323131212123133313222   <<    C22212323232133313113313331333132313331323132213231312121231333132223   >>      C22212323232133313113313331333132313331323132213231312121231333132222   >>