#Day2

import java.io.*;
import java.math.*;
import java.security.*;
import java.text.*;
import java.util.*;
import java.util.concurrent.*;
import java.util.function.*;
import java.util.regex.*;
import java.util.stream.*;
import static java.util.stream.Collectors.joining;
import static java.util.stream.Collectors.toList;

class Result {

    public static void solve(double meal_cost, int tip_percent, int tax_percent) {
    // Write your code here

    }

}

public class Solution {
    public static void main(String[] args) throws IOException {
        Scanner scan = new Scanner(System.in);
        double meal_cost = scan.nextDouble();
        int tip_percent = scan.nextInt();
        int tax_percent = scan.nextInt();
        scan.close();
        
         int totalCost = (int) Math.round(meal_cost + meal_cost *tip_percent /100.0 + meal_cost * tax_percent / 100.0);
         
         System.out.println(totalCost);
    }
}