#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 a;
	int b; 
	cin>>a>>b;
	vector<int> A;
	for(int i=a.size()-1;i>=0;i--)A.push_back(a[i]-'0');
	vector<int> C=mul(A,b);
	for(int i=C.size()-1;i>=0;i--)cout<<C[i];
	return 0;
} ain()