using System;
public class Program
{
public static void Main()
Console.WriteLine("Introduce altura");
int a=int.Parse(Console.ReadLine());
Console.WriteLine("Introduce anchura");
int b=int.Parse(Console.ReadLine());
for(int x=1; x<=a;x++)
for(int y=1; y<=b; y++)
if(x==1)
Console.Write("*");
Console.WriteLine("*");
}
else
Console.Write(" ");
Console.WriteLine(" ");
if(x==a)
if(x==b)
if(y==1)
if(y==a)
if(y==b)