C11111333133313232233133313331333133313331311211331333133313113313131   >>    C1111133313331323223313331333133313331333131121133133313331311331313   <<    C11111333133313232233133313331333133313331311211331333133313113313133   >>      C11111333133313232233133313331333133313331311211331333133313113313132   >>