#include <algorithm>
#include <iostream>
#include <iomanip>
#include <climits>
#include <string>
#include <vector>
#include <cmath>
#include <set>
#include <map>
using namespace std;
using ll = long long;

int main(void)
{
  ll D, P, H = 100;
  cin >> D >> P;
  ll R = (D * (P + H)) / H;
  cout << R << endl;
  return 0;
}