BeginnerLists2000 ms256 MB

Badge List

Each student has earned practice badges. Given badge counts, print the largest count.

Statement

Each student has earned practice badges. Given badge counts, print the largest count.

Input

The first line contains `n`. The second line contains `n` integers.

Output

Print the maximum badge count.

Constraints

  • `1 <= n <= 1000`

Examples

Example 1

Input

5
2 7 4 9 6

Output

9

The largest value in the list is 9.

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