#include<bits/stdc++.h>
using namespace std;
int main(){
string a;
char c;
while (cin >> a) {
c = toupper(a[0]);
cout << c;
}
	return 0;
}

/**************************************************************
	Problem: 1100
	User: linyuhang
	Language: C++
	Result: Accepted
	Time:23 ms
	Memory:2076 kb
****************************************************************/