C22212323232133313113313331333132313331323133313331213132323111111223231   >>    C2221232323213331311331333133313231333132313331333121313232311111122323   <<    C22212323232133313113313331333132313331323133313331213132323111111223233   >>      C22212323232133313113313331333132313331323133313331213132323111111223232   >>