There is an error while running this JAVA code. Please help.

Question

/* I am trying to get input and run then run the code. For example, if 6 is the input, then,
6
5
4
3
2
1
will be the output.*/

import java.util.Scanner;
public class Program{
public static void main(String[] args);
{Scanner x = new Scanner(System.in);
System.out.println(x.nextLine());}
{int x = 3;while(x > 0) {System.out.println(x);x--; }
}
}