#include <bits/stdc++.h>
using namespace std;
int32_t main() {
  char ch;
  cin >> ch;
  if (ch <= 'Z' && ch >= 'A')
    cout << ch;
  else
    cout << char((ch - 'a') + 'A');
  while (cin >> ch) cout << ch;
  return 0;
}
