#include<iostream>
using namespace std;
int main()
{
    int loan,Time,total;
    float Rinterest,interset;
    
    cin<<loan;
    cin<<rinterest;
    cin<<time;
    
    interest=(loan*Rinterest*Time)/100;
    total=loan+interest<0||time<0)
    {
        count<<"invalid input";
    }
    else
    {
        cout<<total;
    }
    return 0;
}