C2221333133313331311233132313331333133313331323312111133223313232232121331   >>    C222133313331333131123313231333133313331333132331211113322331323223212133   <<    C2221333133313331311233132313331333133313331323312111133223313232232121333   >>      C2221333133313331311233132313331333133313331323312111133223313232232121332   >>