#include<bits/stdc++.h>
using namespace std;
int main()
{
	string s;
	getline(cin,s);
	for(int i = 0; i < s.size(); i++)
	{
		if((s[i] >= 'a' && s[i] <= 'z') || (s[i] >= 'A' && s[i] <= 'Z'))
		{
			if(s[i - 1] == ' ' && i == 0)
			{
				if(s[i] >= 'a' && s[i] <= 'z')
				{
					cout << char(s[i] - 32);
				}
				else
				{
					cout << s[i];
				}
			}
		}
	}
	return 0;
} 
/**************************************************************
	Problem: 1100
	User: yangwanning
	Language: C++
	Result: Wrong Answer
****************************************************************/