1 + 1 =
2
5 + 1 =
6
19 + 1 =
20
2 + 3 =
5
5 + 3 =
8
12 + 5 =
17
4 + 1 =
4 + 3 =
7
13 + 2 =
15
4
6 + 4 =
10
15 + 4 =
19
3 + 0 =
3
7 + 2 =
9
17 + 3 =
Press F11 Select menu option View > Enter Fullscreen for full-screen mode