C1111121111331311211331333133313331333133313121111331333132232133313112131   >>    C111112111133131121133133313331333133313331312111133133313223213331311213   <<    C1111121111331311211331333133313331333133313121111331333132232133313112133   >>      C1111121111331311211331333133313331333133313121111331333132232133313112132   >>