C22212323232133313113313331333132313331323132213231312133313111   >>    C2221232323213331311331333133313231333132313221323131213331311   <<    C22212323232133313113313331333132313331323132213231312133313113   >>      C22212323232133313113313331333132313331323132213231312133313112   >>