#include<iostream>
using namespace std;

double cal(doublw sal,doublp){
    return sal +(sal*p/100);
    
}
int main(){
    double salary,bp;
    cin>>salary>>bp;if(bp<0 || bp>100){
        cout<<"Invalid input";
    }
    else{
        double newsal = cal(salary,bp);
        cout << newsal;
    }
    return 0;
}