#include <iostream>
#include <iomanip>
#include <cmath>
using namespace std;
double r,m,y;
int main()
{
	cin >> r >> m >> y;
	r = (100 + r) / 100.0;
	for (int i = 1;i <= y;i++)
		m *= r;
	cout << fixed << setprecision(0) << (int)m;
	return 0;
}