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: lzc
	Language: C++
	Result: Compile Error
****************************************************************/