Number Sum
The following grid of size 5x5 is partially complete with whole numbers from 1 to 7.
The sum of each row and column is shown on the edges of the grid.
Fill in the missing numbers to complete the grid.
| 13 | 21 | 22 | 26 | 22 | |
| 31 | 7 | ||||
| 13 | 6 | ||||
| 21 | 2 | 6 | 3 | ||
| 14 | 1 | ||||
| 25 | 7 |