#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: wangyiyang
	Language: C++
	Result: Accepted
	Time:16 ms
	Memory:2076 kb
****************************************************************/