#include<bits/stdc++.h>
using namespace std;
string s1;
int a[250],c[500],k=0,l=0;
int b;
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()+4;i++)
    {
        a[i+1]=a[i+1]+a[i]/10;
        a[i]=a[i]%10;
    }
    for(int i=s1.size()+4-1;i>=0;i--){
    	if(a[i]!=0){
    		l=i;
			break;	
		}
	}
	for(int i=l;i>=0;i--) cout<<a[i];
    return 0;
}
/**************************************************************
	Problem: 1286
	User: houshanglin
	Language: C++
	Result: Accepted
	Time:27 ms
	Memory:2080 kb
****************************************************************/