package main

import (
	"fmt"
	"math"
)

func main() {
	var A, B int
	_, _ = fmt.Scan(&A, &B)

	if A == 0 || B == 0 {
		fmt.Println(1)
		return
	}

	a, b := 1, 1
	for {
		ta := int(math.Round(float64(a*100) / float64(a+b)))
		tb := int(math.Round(float64(b*100) / float64(a+b)))

		// fmt.Println(a, ta, b, tb)
		if A == ta && B == tb {
			fmt.Println(a + b)
			return
		} else {
			if A > ta {
				a++
			} else {
				b++
			}
		}
	}
}