#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: 1100
	User: linzihang
	Language: C++
	Result: Accepted
	Time:15 ms
	Memory:2076 kb
****************************************************************/