package Assignements;

import java.util.Scanner;

public class FirstAssignment {

public static void main(String[] args)

{

System.out.print("Enter up to where we go: ");

Scanner scan = new Scanner(System.in);

int i, j, sum = 0, a = 0, b = 0, c = 0, s = 0, n = 0;

i = scan.nextInt();

n = i / 3;

a = ( 3 * n * ( n + 1 ))/2;

n = i / 5;

b = ( 5 * n * ( n + 1 ))/2;

n = i / 15;

c = ( 15 * n * ( n + 1 ))/2;

s = a + b - c;

System.out.print("You number is: ");

System.out.println(s);

}

}