#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;
}