Phương pháp đánh giá: Special Judge
| Subtask 1Điểm mỗi test được cộng vào dạng phần trăm, Tổng số điểm 50 | |
| shelves1.in | shelves1.out | 
| shelves2.in | shelves2.out | 
| shelves3.in | shelves3.out | 
| shelves4.in | shelves4.out | 
| shelves5.in | shelves5.out | 
| shelves6.in | shelves6.out | 
| shelves7.in | shelves7.out | 
| shelves8.in | shelves8.out | 
| shelves9.in | shelves9.out | 
| shelves10.in | shelves10.out | 
| shelves11.in | shelves11.out | 
| shelves12.in | shelves12.out | 
| shelves13.in | shelves13.out | 
| shelves14.in | shelves14.out | 
| shelves15.in | shelves15.out | 
| Subtask 2Điểm mỗi test được cộng vào dạng phần trăm, Tổng số điểm 50 | |
| shelves16.in | shelves16.out | 
| shelves17.in | shelves17.out | 
| shelves18.in | shelves18.out | 
| shelves19.in | shelves19.out | 
| shelves20.in | shelves20.out | 
| shelves21.in | shelves21.out | 
| shelves22.in | shelves22.out | 
| shelves23.in | shelves23.out | 
| shelves24.in | shelves24.out |