#include<iostream>
#include<algorithm>#include<string>#include<math.h>using namespace std;int main() { int n; long long x; cin >> n; int * a = new int[n]; for (int i = 0; i < n; i++) { cin >> a[i]; } x = a[0]; for (int i = 1; i < n; i++) { x = gongbeishu(a[i], x); } system("pause>nul"); return 0;}