#include<iostream>
using namespace std;
void get(int x)
{
    
}
int main()
{
    get(int x);
   
    int salary;
    int bonus;
    cin>>salary>>bonus;
    if(bonus<101&&bonus>0)
    cout<<((salary*bonus)/100)+salary;
    else
    cout<<"Invalid input";
    return 0;
}