C222123232321333131133133313331333132313232313112112231333221221   >>    C22212323232133313113313331333133313231323231311211223133322122   <<    C222123232321333131133133313331333132313232313112112231333221223   >>      C222123232321333131133133313331333132313232313112112231333221222   >>