12 + 15 =
13 + 13 =
15 + 10 =
11 + 15 =
15 + 12 =
10 + 14 =
15 + 10 =
10 + 15 =
16 + 12 =
14 + 12 =
17 + 10 =
12 + 14 =
15 + 12 =
10 + 12 =