#include <cstdlib>
#include <iostream>

using namespace std;
int main()
{
   // int r,m,y,i,a;
    double r,m,a,i,t,k,b[500];
    cin>>r;
    cin>>m;
    int y;
    cin>>y; 
    //t=static_cast<double>(r);
    k=(1+(r/100));
    b[0]=m;
    for(int i=0;i<y+1;i++)
    {
            b[i+1]=b[i]*k;
    }
    cout<<static_cast<int>(b[y]);
   // cout<<a;
    system("PAUSE");
    return EXIT_SUCCESS;
}