C222123232321333131133133313331323133313231333133312131323231212131221   >>    C22212323232133313113313331333132313331323133313331213132323121213122   <<    C222123232321333131133133313331323133313231333133312131323231212131223   >>      C222123232321333131133133313331323133313231333133312131323231212131222   >>