import java.util.*;
public class Niz16a{
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		System.out.print("Vnesi stavek ");
		String stavek = sc.nextLine();
		StringBuffer rez = new StringBuffer();
		int zacBes = 0;
		for (int i = 0; i<=stavek.length(); i++){
			if (i == stavek.length() || stavek.charAt(i) == ' '){
				if (i>zacBes){
					String beseda = stavek.substring(zacBes, i);
					rez.append(beseda);
					rez.append(beseda.charAt(0));
				}
				if (i<stavek.length())
					rez.append(' ');
				zacBes = 1 + i;
			}
		}
		System.out.println(rez.toString());
	}
}