C1111121111331311211331333133313331333133313121111331333132322132212131   >>    C111112111133131121133133313331333133313331312111133133313232213221213   <<    C1111121111331311211331333133313331333133313121111331333132322132212133   >>      C1111121111331311211331333133313331333133313121111331333132322132212132   >>