#include <iostream>
#include <csignal>
#include <cstdlib>
using namespace std;
int main() { return 0; }

void sigfun(int);

struct _ {
    _() {
        signal(SIGABRT, sigfun);
        
        abort();
    }
} yukicoderNo56;


void sigfun(int) {

    int d, p;
    cin >> d >> p;

    int ans = d * (100 + p) / 100;


    cout << ans << endl;
    
    exit(0);
}