import java.util.*;
public class Niz12{
	public static void main(String[] args){
		Scanner sc = new Scanner(System.in);
		System.out.print("Vnesi besedo ");
		String beseda = sc.nextLine();
		StringBuffer sb = new StringBuffer(beseda);
		// dodamo crko a" na konec
		sb.insert(sb.length(), 'a');
		System.out.println(sb);
		// izbriši vsak 2 znak
		for (int i = sb.length()-1; i>=0; i -= 2){
			sb.deleteCharAt(i);
		}
		System.out.println(sb);
	}
}