#include <bits/stdc++.h>
using namespace std;
using ll=long long;

ll downfloor(ll x,ll m){
  //floor(x/m)を正確に求める
  ll r=(x%m+m)%m;
  return (x-r)/m;
}

int main(){
  ll D,P;cin>>D>>P;
  cout<<downfloor(D*(100+P),100LL)<<endl;
}