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