#include <stdio.h>
int find_max_element(int *ptr, int n)
{
int *p = ptr;
int max = *p;
p++;
while (p < ptr + n)
{
if (max < *p)
{
max = *p;
}
p++;
}
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;
}