C1111121111331311211331333133313331333133313221211113313331333131211111311131   >>    C111112111133131121133133313331333133313331322121111331333133313121111131113   <<    C1111121111331311211331333133313331333133313221211113313331333131211111311133   >>      C1111121111331311211331333133313331333133313221211113313331333131211111311132   >>