#include<bits/stdc++.h>
using namespace std;
int main(){
	int n,i;
	string s;
	getline(cin,s);
	for(i=0;i<s.size();i++){
		if(s[i]!=' '){
			if(i==0||s[i-1]==' '){
				if(s[i]>='a'&&s[i]<='z'){
					cout<<(char)(s[i]-=32);
				}
				else cout<<s[i];
			}
		}
	}
	return 0;
}
/**************************************************************
	Problem: 1100
	User: houshanglin
	Language: C++
	Result: Accepted
	Time:23 ms
	Memory:2076 kb
****************************************************************/