C222123232321333131133133313331323133313231333133312131323232121131221   >>    C22212323232133313113313331333132313331323133313331213132323212113122   <<    C222123232321333131133133313331323133313231333133312131323232121131223   >>      C222123232321333131133133313331323133313231333133312131323232121131222   >>