C22212323232133313113313331333132313331323132213231312131221123231   >>    C2221232323213331311331333133313231333132313221323131213122112323   <<    C22212323232133313113313331333132313331323132213231312131221123233   >>      C22212323232133313113313331333132313331323132213231312131221123232   >>