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.
| 20 | 17 | 22 | 12 | 14 | |
| 18 | 3 | ||||
| 15 | 1 | ||||
| 16 | 4 | ||||
| 19 | 6 | 6 | 2 | ||
| 17 | 1 | 5 | 2 |