#include #include typedef unsigned long long ULLONG; typedef long long LLONG; static const LLONG MOD_NUM = 998244353LL;//1000000007LL; static const LLONG INF_NUM = 1e18; static const int CH_KINDS = 'z' - 'a' + 1; template static void get(_T& a) { std::cin >> a; } template static void get(_T& a, _T& b) { std::cin >> a >> b; } template static void get(_T& a, _T& b, _T& c) { std::cin >> a >> b >> c; } template static _T tp_abs(_T a) { if (a < (_T)0) { a *= (_T)-1; } return a; } template static _T tp_pow(int x, int exp) { _T ans = 1; _T base = x; while (exp > 0) { if (exp & 1) { ans = (ans * base); } base = (base * base); exp >>= 1; } return ans; } static void task(); int main() { task(); fflush(stdout); return 0; } static void task() { int N; get(N); LLONG X, Y; get(X, Y); std::vector ri(N); LLONG min = 1e10; LLONG sum = 0; for (int i = 0; i < N; i++) { get(ri[i]); min = std::min(min, ri[i]); sum += ri[i] * 2; } if (N == 1) { if (min * min == (X * X + Y * Y)) { printf("Yes\n"); } else { printf("No\n"); } } else if ((sum - min) * (sum - min) >= (X * X + Y * Y)) { printf("Yes\n"); } else { printf("No\n"); } }