[이코테]곱하기 혹은 더하기 <그리디>

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Arrays;

public class Main {
    public static void main(String[] args) throws IOException {
        BufferedReader br = new BufferedReader(new InputStreamReader(System.in));

        String[] arr1 = br.readLine().split("");
        int num = 0;

        for(int i=0; i<arr1.length; i++) {
            int value = Integer.parseInt(arr1[i]);
            if(num == 0 || num == 1) {
                num += value;
            } else {
                num *= value;
            }
        }
        System.out.println(num);
    }
}