maline

#include <iostream>
using namespace std;

int main()
{
	int years;
	double tones, percentage, first_year;

	cin >> years >> first_year >> percentage;
	int current_year = 1;

	if (years > 0) {
		tones = first_year;
	}
	else {
		tones = 0;
	}

	while (current_year < years) {

		tones = tones + tones * percentage / 100.0;
		current_year++;
	}


	cout << int(tones * 100) / 100.0;
}