Add up to 20
Addition of two numbers with sum up to 20
1
+
2
1
+
3
1
+
1
1
+
6
6
+
7
9
+
2
11
+
3
1
+
4
1
+
7
1
+
3
3
+
4
1
+
2
3
+
13
13
+
5
10
+
5
4
+
6
2
+
18
2
+
4
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v0.32.0 (production)
