#include <stdio.h>
int find_max_element(int *ptr, int n) {
int temp = 0;
int max = *ptr;
while(n)
{
temp = *ptr++;
if (temp > max){
max = temp;
}
n--;
}
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;
}