CharsToString

import java.util.Scanner;
import java.io.*;
import java.util.*;

public class P06CharsToStrings {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        char firstSymbol = scanner.nextLine().charAt(0);
        char secondSymbol = scanner.nextLine().charAt(0);
        char thirdSymbol = scanner.nextLine().charAt(0);
        String result = Character.toString(firstSymbol) + Character.toString(secondSymbol) + Character.toString(thirdSymbol);

        System.out.println(result);
    }
}