C222123232321333131133133313331323133313231333131331131331221331   >>    C22212323232133313113313331333132313331323133313133113133122133   <<    C222123232321333131133133313331323133313231333131331131331221333   >>      C222123232321333131133133313331323133313231333131331131331221332   >>