#include<bits/stdc++.h>
using namespace std;
string s1;
int a[250],c[300],b,t;
int main(){
    cin>>s1>>b;
    for(int i=0;i<s1.size();i++) a[i]=s1[s1.size()-i-1]-'0';
    for(int i=0;i<s1.size();i++) a[i]=a[i]*b;
    for(int i=0;i<s1.size()+5;i++){
        a[i+1]=a[i+1]+a[i]/10;
        a[i]=a[i]%10; 
    }
    for(int i=s1.size()+5-1;i>=0;i--){
        if(a[i]!=0){
            t=i+1;break;
        }
    }
    while(t--) cout<<a[t];
    return 0;}
/**************************************************************
	Problem: 1286
	User: fzy001
	Language: C++
	Result: Wrong Answer
****************************************************************/