C11111333133313232233133313331333132332313112113313331311221123231313131   >>    C1111133313331323223313331333133313233231311211331333131122112323131313   <<    C11111333133313232233133313331333132332313112113313331311221123231313133   >>      C11111333133313232233133313331333132332313112113313331311221123231313132   >>