#include <fstream>
#include <iostream>
using namespace std;
int main()
{
  ifstream infile("input.txt");
  ofstream outfile("output.txt");
  string word;
  char c;
  while (infile >> word)
    { if (word[0] >= 'a' && word[0] <= 'z') word[0] += 'A' - 'a';
      outfile << word;
      infile.get(c);
      outfile.put(c);
    }
  return 0;
}