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