C222123232321333131133133313331323133313231333133312131323231312212311   >>    C22212323232133313113313331333132313331323133313331213132323131221231   <<    C222123232321333131133133313331323133313231333133312131323231312212313   >>      C222123232321333131133133313331323133313231333133312131323231312212312   >>