#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(i==0||(s[i-1]==' ')&&s[i]!=' '){
				if(s[i]>='a'&&s[i]<='z'){
					cout<<char(s[i]-32);
				}else{
					cout<<s[i];
				}
			}
		}
	} 
	return 0;
}

/**************************************************************
	Problem: 1105
	User: linyuhang
	Language: C++
	Result: Wrong Answer
****************************************************************/