1
2
3
4
5
6
7
8
9
13
12
11
10
1+2=3
1
2
3
4
5
6
7
8
9
13
12
11
10
2 + 3 = 5
1
2
3
4
5
6
7
8
9
13
12
11
10
2 + 4 = 6
1
2
3
4
5
6
7
8
9
13
12
11
10
5 + 4 = 9
1
2
3
4
5
6
7
8
9
13
12
11
10
4 + 5 = 9
1
2
3
4
5
6
7
8
9
13
12
11
10
2 + 7 = 09
1
2
3
4
5
6
7
8
9
13
12
11
10
8 + 1 = 9
2
3
4
5
6
1 + 5 = 6
2
3
4
5
6
7
8
9
1 + 8 = 9
Well done