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) {
double tip =(meal_cost/100)*tip_percent;
double tax = (meal_cost/100)*tax_percent;
double total = tip+tax+meal_cost;
System.out.println(Math.round(total));
}

}

public class Solution { public static void main(String[] args) throws IOException { BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in));

    double meal_cost = Double.parseDouble(bufferedReader.readLine().trim());

    int tip_percent = Integer.parseInt(bufferedReader.readLine().trim());

    int tax_percent = Integer.parseInt(bufferedReader.readLine().trim());

    Result.solve(meal_cost, tip_percent, tax_percent);

    bufferedReader.close();
}

}