C1111121111331311211331333133313331333133313232212111112111133133313132311211   >>    C111112111133131121133133313331333133313331323221211111211113313331313231121   <<    C1111121111331311211331333133313331333133313232212111112111133133313132311213   >>      C1111121111331311211331333133313331333133313232212111112111133133313132311212   >>