#include <iostream>
using namespace std;
 
int main() {
	// your code goes here
 
	int n;
	cin>>n;
 
	int armNum = 0;
	int size = 0;
 
	int original = n;
 
//Handle edge case
	if(n<=0){
		cout<<"Enter valid number: "<<endl;	
	}
 
 
//find the number of digit in the given number
	while(original != 0){
		size++;
		original = original/10;
	}
 
//find the armstrong number;
	while(size > 0){
		int temp = n%10;
		armNum = armNum + temp*temp*temp;
		n /= 10;
		size--;
	}
 
	cout<<armNum<<endl;
 
	return 0;
}

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