ACTIVITY 2
9
5
6
0
7
0
1
0
3
6
1
1
0
1
4
6
6
9
8
6
9
7
5
9
6
5
7
7
4
9
9
4
1
4
5
9
5
7
4
8
5
8
1
6
4
1
9
8
9
5
4
7
5
4
8
2
1
4
8
5
3
0
8
1
3
7
4
6
3
8
3
0
2
4
8
1
6
0
5
0
0
0
9
5
6
9
9
7
2
4
2
4
9
4
2
0
5
5
4
7
3
There are 12 boxes that have the value of 9