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