C1111121111331311211331333133313331333133313231333133313331333133211111121211   >>    C111112111133131121133133313331333133313331323133313331333133313321111112121   <<    C1111121111331311211331333133313331333133313231333133313331333133211111121213   >>      C1111121111331311211331333133313331333133313231333133313331333133211111121212   >>