4 + 1 ---------- |
3 + 2 ---------- |
9 + 0 ---------- |
2 + 2 ---------- |
7 + 2 ---------- |
6 + 3 ---------- |
7 + 0 ---------- |
0 + 2 ---------- |
6 + 0 ---------- |
0 + 1 ---------- |
4 + 0 ---------- |
0 + 1 ---------- |
6 + 0 ---------- |
4 + 5 ---------- |
6 + 0 ---------- |
0 + 2 ---------- |