C222123232321333131133133313331323133313231333133312131323231123221111   >>    C22212323232133313113313331333132313331323133313331213132323112322111   <<    C222123232321333131133133313331323133313231333133312131323231123221113   >>      C222123232321333131133133313331323133313231333133312131323231123221112   >>