| row: 0 col: 0 |
row: 0 col: 1 |
row: 0 col: 2 |
row: 0 col: 3 |
| row: 1 col: 0 |
row: 1 col: 1 |
row: 1 col: 2 |
row: 1 col: 3 |
| row: 2 col: 0 |
row: 2 col: 1 |
row: 2 col: 2 |
row: 2 col: 3 |
| row: 3 col: 0 |
row: 3 col: 1 |
row: 3 col: 2 |
row: 3 col: 3 |