#include <bits/stdc++.h> using namespace std; int main() { int n; cin >> n; vector<int> a(n); int odd = 0; for (int i = 0; i < n; ++i) { cin >> a[i]; if(a[i] % 2 == 1) odd++; } // 分n=3(比较特殊)和其他 if (n == 3) { if(odd == 0 || odd == 2) { cout << "NO"; } else { cout << "YES"; } } else { // n>=4时,只需要出现一个奇数,必定yes if (odd) cout << "YES"; else {cout << "NO";} } return 0; }