#include <bits/stdc++.h>
using namespace std;

int main() {
	int a, b, c, d;
	cin >> a;
	b = a / 100;
	c = a / 10 - b * 10;
	d = a % 10;
	if (pow(b, 3) + pow(c, 3) + pow(d, 3) == a) {
		cout << "YES";
	} else {
		cout << "NO";
	}
	return 0;
}

#include using namespace std;

int main() { int n; cin >> n; int a = n / 100; //百位 int b = n / 10 % 10; //十位 int c = n % 10; //个位

int sum = a*a*a + b*b*b + c*c*c;
if(sum == n)
    cout << "YES" << endl;
else
    cout << "NO" << endl;
return 0;

} 水仙花数：百位立方 + 十位立方 + 个位立方 = 原数 例

#include using namespace std;

int main() { int n, a, b, c; int sum = 0; cin >> n; a = n / 100; b = n % 100 / 10; c = n % 10; sum = a * a * a + b * b * b + c * c * c; if (sum == n) { cout << "YES"; } else { cout << "NO"; } return 0; }

#include <bits/stdc++.h> using namespace std;

int main() { long long a,b,c,d; cin>>a; b=a/100; c=a%100/10; d=a%100%10; if(bbb+ccc+ddd==a){ cout<<"YES"; } else{ cout<<"NO"; } return 0; }

数学老师没教过>:(

#include using namespace std;

int main() { int n; cin >> n; int a = n/100, b = n/10%10, c = n%10; cout << (aaa + bbb + ccc == n ? "YES" : "NO"); return 0; }