#include <stdio.h>
int find_max_element(int *ptr, int n)
{
// Your logic here
signed int i = 0;
signed int max = *(ptr);
// max = *(ptr+i);
while(i<n)
{
if(max < *(ptr+i))
{
max = *(ptr+i);
}
i++;
}
return max;
}
int main()
{
int n;
scanf("%d", &n);
int arr[100];
for (int i = 0; i < n; i++)
{
scanf("%d", &arr[i]);
}
int result = find_max_element(arr, n);
printf("%d", result);
return 0;
}