#include <stdio.h>
int find_max_element(int *ptr, int n) {
// Your logic here
int *start = ptr;
int *end = ptr + n -1;
int res = *start;;
while(start < end){
if(res < *start)
{
res = *start;
}
++start;
}
return res;
}
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;
}