C222123232321333131133133313331323133313231333133323311322221322221   >>    C22212323232133313113313331333132313331323133313332331132222132222   <<    C222123232321333131133133313331323133313231333133323311322221322223   >>      C222123232321333131133133313331323133313231333133323311322221322222   >>