C22212323232133313113313331333132313331323132213231312112221323211   >>    C2221232323213331311331333133313231333132313221323131211222132321   <<    C22212323232133313113313331333132313331323132213231312112221323213   >>      C22212323232133313113313331333132313331323132213231312112221323212   >>