C111123313121111121111331333133313331323221211113313233311232233231   >>    C11112331312111112111133133313331333132322121111331323331123223323   <<    C111123313121111121111331333133313331323221211113313233311232233233   >>      C111123313121111121111331333133313331323221211113313233311232233232   >>