#include <iostream>
using namespace std;
int main()
{
int b = 0;
for (int i = 10; i < 10000; ++i)
{
int k = i, k2, k3 = 0;
k2 = k*k;
while (k) {
k3 += (k % 10)*(k % 10)*(k % 10);
k /= 10;
}
(k2 == k3) ? (++b) : (b = b);
}
cout << b << endl;
return 0;
}