| Вход | Ожидаемый результат |
|---|---|
| [[1, 2, 3], [2, 3, 4], [2, 3, 5]] | [2, 3] |
| [[1], [1], [1]] | [1] |
| [[1, 2], [3, 4], [5, 6]] | [] |
| [[1, 2, 3, 4], [2, 3, 4, 5], [3, 4, 5, 6]] | [3, 4] |
| [[], [1, 2], [1, 2]] | [] |
| [[5, 6, 7], [5, 6, 7], [5, 6, 7]] | [5, 6, 7] |
| [[1, 2, 3], [1, 2, 3], [1]] | [1] |
| [[10, 20], [10, 30], [10, 40]] | [10] |
| [[1, 2, 3, 4, 5], [2, 4], [4]] | [4] |
| [[0, 1], [0, 2], [0, 3]] | [0] |