public class ForLoop {
    public static int main() {
        int sum = 0;
        for (int i = 1; i <= 5; i++) {
            sum = sum + i;
        }
        System.out.println(sum);

        int product = 1;
        for (int j = 1; j <= 4; j++) {
            product = product * j;
        }
        System.out.println(product);

        for (int k = 0; k < 3; k++) {
            System.out.println(k);
        }

        return 0;
    }
}