北大OJ2390

#include<iostream>
using namespace std;
int main()
{
	int R,M,Y;
	cin>>R>>M>>Y;
	double p;
	p=M;
	int q,i;
	for(i=1;i<=Y;i++)
		p=(0.01*R+1)*p;
	q=p;
	cout<<q<<endl;
	return 0;
}