package main

import (
	"bufio"
	"fmt"
	"os"
	"strconv"
)

func main() {
	D := nextInt()
	P := nextInt()

	price := D * (100 + P) / 100
	fmt.Println(price)
}

var sc = bufio.NewScanner(os.Stdin)

func next() string {
	sc.Split(bufio.ScanWords)
	sc.Scan()
	return sc.Text()
}

func nextInt() int {
	i, e := strconv.Atoi(next())
	if e != nil {
		panic(e)
	}
	return i
}