C :

#include<stdio.h>

int main()
{
	int n,i=0;
	char c;
	while((c=getchar())!='@')
	{
		scanf("%d%*c",&n);
		printf(i?"\n%*c\n":"%*c\n",n,c);
		if(n==1)
		{
			i=1;
			continue;
		}
		for(i=1;i<n-1;i++)
			printf("%*c%*c\n",n-i,c,2*i,c);
		for(i=0;i<2*n-1;i++)
			printf("%c",c);
		printf("\n");
	}
	return 0;
}

C++ :

#include<stdio.h>

int main()
{
	int n,i=0;
	char c;
	while((c=getchar())!='@')
	{
		scanf("%d%*c",&n);
		printf(i?"\n%*c\n":"%*c\n",n,c);
		if(n==1)
		{
			i=1;
			continue;
		}
		for(i=1;i<n-1;i++)
			printf("%*c%*c\n",n-i,c,2*i,c);
		for(i=0;i<2*n-1;i++)
			printf("%c",c);
		printf("\n");
	}
	return 0;
}

Pascal :

var a:char;b,i,j,t:integer;
begin
 read(a);
 while a<>'@' do
  begin
   readln(b);t:=t+1;if t<>1 then writeln;
   for i:=1 to b do
    begin
     for j:=1 to b-i do
      write(' ');
     for j:=1 to 2*i-1 do
      if (i=b)or(j=1)or(j=2*i-1) then write(a) else write(' ');
     writeln
    end;
   read(a)
  end
end.

Java :

import java.util.Scanner;


public class Main {
	public static void main(String[] args)
	{
		Scanner s=new Scanner(System.in);
		String c;int i,j,k,n;
		
		while(s.hasNext())
		{
			if((c=s.next()).equals("@"))
			{
				break;
			}
				
				
					n=s.nextInt();
					for ( i = 0; i < n-1; i++) {
						for ( j = 0; j < n-i-1; j++) 
							System.out.print(" ");
				         System.out.print(c);
				         for (k = 0; k < 2*i-1; k++) 
				        	 System.out.print(" ");
				         if(i!=0)

						System.out.println(c);
				         else
				        	 System.out.println();
				         
					}
					for(int l=0;l<2*n-1;l++)
					{
						System.out.print(c);
					}
					System.out.println();
				
					System.out.println();
						
			}
			
				}
			
}