import java.util.*;

class F {
    int fun(int n) {
        Scanner in = new Scanner(System.in);
        if(in.hasNextInt()) {
            int m = in.nextInt();
            return fun(n * m);
        } else {
            return n;
        }
    }

    public static void main(String[] args) {
        int n;
        F f = new F();
        Scanner in = new Scanner(System.in);

        System.out.println("这个程序可以多次把数相乘");
        System.out.println("输入一个整数后按回车键，可继续输入要乘的数，以#结束计算");
        n = in.nextInt();
        System.out.println("结果为:" + f.fun(n));
    }
}