C111123313121111121111331333133313331323221211113313233311231331   >>    C11112331312111112111133133313331333132322121111331323331123133   <<    C111123313121111121111331333133313331323221211113313233311231333   >>      C111123313121111121111331333133313331323221211113313233311231332   >>