C1111121111331311211331333133313331323131133133311331311331323221111   >>    C111112111133131121133133313331333132313113313331133131133132322111   <<    C1111121111331311211331333133313331323131133133311331311331323221113   >>      C1111121111331311211331333133313331323131133133311331311331323221112   >>