#include<bits/stdc++.h>
using namespace std;
vector<int> mul(vector<int> &a,int b)
{
    vector<int> c;
    int t = 0;
    for(int i = 0; i < a.size() || t; ++i)
    {
        if(i < a.size()) t += a[i] * b;
        c.push_back(t % 10);
        t /= 10;
    }
    return c;
}
int main()
{
    string s1; cin >> s1;
    int b; cin >> b;
    vector<int> a;
    for(int i = 0; i < s1.size(); ++i) a.push_back(s1[i]-'0');
    reverse(a.begin(),a.end());
    vector<int> c = mul(a,b);
    reverse(c.begin(),c.end());
    for(int i = 0; i < c.size(); ++i) cout << c[i];
    return 0;
}