C11111333133313232233133313331333133313332313331123313113313113311332321   >>    C1111133313331323223313331333133313331333231333112331311331311331133232   <<    C11111333133313232233133313331333133313332313331123313113313113311332323   >>      C11111333133313232233133313331333133313332313331123313113313113311332322   >>