C222123232321333131133133313331323133313231333133312131323112211   >>    C22212323232133313113313331333132313331323133313331213132311221   <<    C222123232321333131133133313331323133313231333133312131323112213   >>      C222123232321333131133133313331323133313231333133312131323112212   >>