half integer

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Problem

print half integer

Options

exec is denied

rejudge feature is enabled

now post-mortem time, all source codes will be revealed

Sample input:_

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

Sample output:

6
0
11/2
5
15/2
9/2
3/2
0
19/2
15/2
7/2
17/2
13/2
5/2
5
5
15/2
9/2
9
6
0
4
9
7/2
17/2
4
11/2
4
7
19/2
13/2
3/2
1
1/2
15/2
0
9
6
7/2
1/2
8
1
17/2
15/2
5/2
7/2
4
7/2
1
5/2
19/2
0
1
7/2
11/2
11/2
1
17/2
5/2
8
3/2
0
1/2
5/2
1/2
9
1/2
7/2
6
1/2
3/2
3/2
4
4
13/2
1/2
8
0
19/2
8
4
3
4
13/2
19/2
1/2
4
5
6
1
5/2
2
9/2
6
1
19/2
13/2
9
15/2
4

Sample input:_

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

Sample output:

0
2
13/2
13/2
7
3/2
5
5
7/2
5
1
13/2
0
9/2
8
7/2
2
7
7
1/2
5/2
5/2
6
13/2
19/2
17/2
4
7
2
7
15/2
7
3
0
8
1
7
6
11/2
3
7/2
5
1
4
3
11/2
7/2
5/2
6
3
1
1
7
1
17/2
7
15/2
3
1/2
19/2
9
2
15/2
7
11/2
5
15/2
11/2
9
19/2
11/2
8
0
17/2
3/2
3
2
7/2
5/2
1
2
9
17/2
5/2
15/2
8
5
8
1/2
7/2
5
8
0
3
9/2
6
5/2
11/2
8
4

Sample input:_

8
6
7
4
10
4
4
7
3
8
17
19
19
18
3
10
8
11
3
14
18
6
14
3
1
18
9
1
0
13
16
3
19
19
4
1
1
12
18
7
1
18
4
7
10
18
8
9
12
11
5
10
12
7
19
16
0
11
0
19
16
5
6
18
18
3
0
3
6
2
2
11
0
8
11
7
10
0
5
17
18
1
10
17
8
14
3
8
13
17
1
10
18
4
10
13
0
4
12
16

Sample output:

4
3
7/2
2
5
2
2
7/2
3/2
4
17/2
19/2
19/2
9
3/2
5
4
11/2
3/2
7
9
3
7
3/2
1/2
9
9/2
1/2
0
13/2
8
3/2
19/2
19/2
2
1/2
1/2
6
9
7/2
1/2
9
2
7/2
5
9
4
9/2
6
11/2
5/2
5
6
7/2
19/2
8
0
11/2
0
19/2
8
5/2
3
9
9
3/2
0
3/2
3
1
1
11/2
0
4
11/2
7/2
5
0
5/2
17/2
9
1/2
5
17/2
4
7
3/2
4
13/2
17/2
1/2
5
9
2
5
13/2
0
2
6
8

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