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