/**
 * Created by iyasuwatts on 10/17/17.
 */
import java.util.*;
public class Main {

    public static void main(String[] args){

    
    int randomNumber = 0;
    Scanner input = new Scanner(System.in);
    System.out.println("What's your input a number");
    
    int intVar = input.nextInt();
    for ( int i = intVar; i>0; i--) {
        randomNumber = randomNumber + i;
        System.out.println(randomNumber);
    }
    
    
    
    
    
}
    
    
}