#include <iostream>
#include <string>
using namespace std;

int main()
{
   cout << "Enter your first, middle, and last name (seperated by Space):";
   string first;
   string middle;
   string last;

   cin >> first >> middle >> last; 

   cout << first.substr(0, 1) << middle.substr(0, 1) << last.substr(0, 1) << endl;
   
   return 0;
}