Multiplication Table Generator upto 20 digits!

In Written format!!

import java.util.Scanner;
public class Main{
    public static void main(String[] args){
        Scanner sc = new Scanner(System.in);
        int a = sc.nextInt();
        for(int i = 0;i<=20;i++){
            int mul = a*i;
            System.out.println(a+" X "+i+" = "+mul);
        }
    }
}