9 + 1 = 2 + 5 = 5 + 9 = 1 + 5 =
17 − 0 = 7 + 9 = 17 − 4 = 18 − 0 =
6 − 3 = 6 + 12 = 19 − 18 = 12 − 12 =
4 + 15 = 10 − 10 = 2 + 15 = 12 + 6 =
9 − 8 = 8 − 8 = 13 − 10 = 1 + 13 =
14 − 3 = 15 − 5 = 16 − 2 = 15 − 11 =
1 + 14 = 6 + 13 = 12 + 5 = 19 − 4 =
2 + 16 = 9 + 6 = 8 + 1 = 8 + 6 =
8 − 5 = 7 + 3 = 12 − 3 = 3 + 7 =
10 + 3 = 19 − 10 = 13 + 2 = 13 − 2 =
9 − 3 = 1 + 17 = 14 − 11 = 1 + 1 =
19 − 13 = 4 + 16 = 12 − 11 = 18 − 12 =
7 − 4 = 15 − 3 = 16 − 13 = 2 + 13 =
7 + 13 = 16 − 6 = 12 − 8 = 9 + 8 =
10 + 6 = 15 − 2 = 4 − 1 = 9 − 5 =
6 + 10 = 3 + 2 = 1 + 15 = 1 + 4 =
14 + 5 = 12 − 4 = 18 − 9 = 8 + 4 =
8 + 10 = 6 − 2 = 2 + 12 = 20 − 7 =
15 + 5 = 20 − 10 = 7 − 1 = 17 − 3 =
2 + 1 = 13 − 9 = 9 + 2 = 15 + 4 =
19 − 11 = 6 + 14 = 10 − 6 = 18 − 10 =
2 + 17 = 16 − 7 = 4 + 7 = 6 + 3 =
3 + 17 = 18 − 17 = 20 − 4 = 17 − 10 =
9 − 6 = 1 + 6 = 18 − 1 = 1 + 3 =
11 + 7 = 16 − 11 = 5 + 8 = 7 + 2 =