#include <iostream>
using namespace std;
 
int main() {
    
	int n;
	cout << "n=";
	cin >> n;
	for (int i = 0; i < 10001; i++)
	{
	  if (n < i)
	  {
	    cout << "i=" << i << endl;
	    break;
	  }
	}
	
    return 0;
}