C1111121111331311211331333133313331333133313121111121111121111112232132233131   >>    C111112111133131121133133313331333133313331312111112111112111111223213223313   <<    C1111121111331311211331333133313331333133313121111121111121111112232132233133   >>      C1111121111331311211331333133313331333133313121111121111121111112232132233132   >>