C11111333133313232233133313331333132332313112113313331323133313113321111   >>    C1111133313331323223313331333133313233231311211331333132313331311332111   <<    C11111333133313232233133313331333132332313112113313331323133313113321113   >>      C11111333133313232233133313331333132332313112113313331323133313113321112   >>