#include <iostream>
using namespace std;
int main()
{
	int n;
	cout << "Enter an integer: ";
	cin >> n;
	if (n >= 0 && n <= 9)
		cout << "One Digit\n";
	else if (n >= 10 && n <= 99)
		cout << "Two Digits\n";
	else if (n >= 100 && n <= 999)
		cout << "Three Digits\n";
	else if (n >= 1000 && n <= 9999)
		cout << "Four Digits\n";
	else //if (n < 0 || n > 9999)
		cout << "Out of Range\n";
	return 0;
}