#include <iostream> #include <string> #include <algorithm> #include <vector> #include <iomanip> #include <cmath> #include <stdio.h> #include <queue> #include <deque> #include <cstdio> #include <set> #include <map> #include <bitset> #include <stack> #include <cctype> using namespace std; int n, e[15]; bool bo = false; void func(int now, int a, int b, int c) { if (now == n) { if (a == b && b == c) { bo = true; } return; } func(now + 1, a + e[now], b, c); func(now + 1, a, b + e[now], c); func(now + 1, a, b, c + e[now]); } int main() { cin >> n; for (int i = 0; i < n; i++) { cin >> e[i]; } func(0, 0, 0, 0); if (bo) { cout << "Yes" << endl; } else { cout << "No" << endl; } }