Write a program to Concatenate natural numbers up to given range using for Loop

   Example:
   Input - 5
   Output - 1 2 3 4 5 */
class Join{
 public static void main(String args[]){
 
 
  int num = Integer.parseInt(args[0]);
  String result = " ";
  for(int i=1;i<=num;i++){
   result = result + i + " ";
  }
  System.out.println(result);
 }
}