#include <bits/stdc++.h>
using namespace std;

int main()
{
    string s;
    getline(cin, s);
    s = ' ' + s;
    for (int i = 0; i < s.size(); ++ i)
    {
        if (s[i] >= 'a' && s[i] <= 'z' && s[i - 1] == ' ')
        {
            s[i] = s[i] - 32;
        }
    }
    s.erase(s.begin());
    cout << s << endl;
    return 0;

}