C11111333133313232233133313331333133313331312111113231311211331   >>    C1111133313331323223313331333133313331333131211111323131121133   <<    C11111333133313232233133313331333133313331312111113231311211333   >>      C11111333133313232233133313331333133313331312111113231311211332   >>