#include<bits/stdc++.h>

using namespace std;

int main()
{
    int n,m,a,b,c,s2,s3,i;double s1;
    cin>>a>>m>>n;

    s1=m;

    for(i=1;i<=n;i=i+1)
    {
        s1=s1*(1+a*1.0/100);
    }

    s2=floor(s1);
    cout<<s2;
}