#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]!=' '&&s[i-1]==' '){
				
			if(s[i]>='a'&&s[i]<='z') cout<<char(s[i]-32);
			else cout<<s[i];
			}
			
		
             
		
			}
              
		}
	
     
    return 0;
}
/**************************************************************
	Problem: 1100
	User: duyahan
	Language: C++
	Result: Accepted
	Time:12 ms
	Memory:2076 kb
****************************************************************/