C222123232321333131133133313331323133313231333133312131323232122123231211   >>    C22212323232133313113313331333132313331323133313331213132323212212323121   <<    C222123232321333131133133313331323133313231333133312131323232122123231213   >>      C222123232321333131133133313331323133313231333133312131323232122123231212   >>