#include <iostream> 
#include <string>
#include <algorithm>
using namespace std;
int A[10000];
int main()
{
	int i = 0; 
	string s;
	cin >> s;
	while(1)
	{
		if(s[i] == '.')
		{
			for(int j = 1;j <= 4;j++)
			{
				cout << s[i];
				i++;
			}
			break;
		}
		else
		{
			cout << s[i];
		}
		i++;
	}
	return 0;
}