/*   /\_/\
    (= ._.)
    / >0  \>1
*/
#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

string convert(string s)
{
  for (ll i = 0; i < s . size(); ++i)
  {
    if (s[i] >= 'A' and s[i] <= 'Z')
    {
      s[i] += 32;
    }
  }
  s[0] -= 32;
  return s;
}
string t, r = "";
int main()  
{

  ios::sync_with_stdio(false);
  cin.tie(0);
  while(cin >> t)
  {
    r += convert(t);
    r += ' ';
  }
  cout << r;
  return 0;
}

#include <bits/stdc++.h>
using namespace std;
string s;
bool kt = true;
int main() 
{
    getline(cin, s);
    cout << char(toupper(s[0]));
    for(int a = 1; a < s.size(); ++a)
    {
        s[a] = char(tolower(s[a]));
        if(kt) cout << char(s[a]);
        kt = true;
        if(s[a] == '.')
        {
            if(s[a+1] != ' ') 
            {
                cout << " ";
                cout << char(toupper(s[a+1]));
            }
            else cout << char(toupper(s[a+2]));
            kt = false;
        }
    }
    return 0;
}

$#khantaon$