package com.company;

public class Main {

    public static void main(String[] args) {
        int a = 99;
        int sum = 0;

        for (int i = 3; i <= 99; i = i + 1) {
            if (i % 3 == 0) {
            sum = sum + i;
            }

        }
        System.out.println(sum);
    }
}