#include <bits/stdc++.h>
using namespace std;
int main() {
	long long P;
	cin >> P;
	int ok = 0;
	for (long long i = 0; i <= 10000; i++) {
		for (long long j = 0; j <= 10000; j++) {
			if (i * i + j * j == P) {
				ok = 1;
			}
		}
	}
	cout << (ok ? "Yes" : "No") << '\n';
	return 0;
}