2+2= 3+1= 3+2= 4+1=
2+1= 1+2= 4+2= 5+1=
1 |
|
| 4 |
|
| 7 |
|
| 10 |
1 |
|
|
| 5 |
1 |
|
|
|
|
| 7 |
|
| 10 |
1 |
| 3 |
|
|
| 7 |
| 9 |
|