#include <iostream>
#include <stdio.h>
#include <vector>
#include <map>
#include <utility>
#include <list>
#include <algorithm>
using namespace std;

int main(){
 int d,p;
 cin>>d>>p;
 float ans=0;
 ans=d*(100+p);
 int tmp=(int)ans/100;
 cout<<tmp<<endl;
    return 0;
}