#include <iostream>
#include<string>
#include<algorithm>
using namespace std;

int reverseNum(int n){
    //将数字n转为字符串
    string nStr=to_string(n);
    //翻转字符串
    reverse(nStr.begin(),nStr.end());
    //转为数字
    int res=stoi(nStr);
    return res;
}

int main(){
    int a,b;
    cin>>a>>b;
    int sum=a*b;
    int res=reverseNum(sum);
    cout<<res<<endl;
    return 0;
}