C11111333133313232233133313331333133313332313331121133132212231   >>    C1111133313331323223313331333133313331333231333112113313221223   <<    C11111333133313232233133313331333133313332313331121133132212233   >>      C11111333133313232233133313331333133313332313331121133132212232   >>