C11111333133313232233133313331333132332313112113313331333133313113313232212331   >>    C1111133313331323223313331333133313233231311211331333133313331311331323221233   <<    C11111333133313232233133313331333132332313112113313331333133313113313232212333   >>      C11111333133313232233133313331333132332313112113313331333133313113313232212332   >>