#include <stdio.h>
int find_max_element(int *ptr, int n) {
int highest = *ptr;
for (int i = 1; i < n; i++){
if (*ptr >= highest) {
highest = *ptr;
// printf("Here %d \n", *ptr);
}
ptr ++;
}
return highest;
}
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;
}