# -*- coding: utf-8 -*-
"""
No.338 アンケート機能
https://yukicoder.me/problems/no/338

"""
import sys
from sys import stdin
input = stdin.readline


def solve(A, B):
    ans = [float('inf'), float('inf')]
    for a in range(1001):
        for b in range(1001):
            try:
                int_a = int((100.0 * a) / (a + b) + 0.5)
                int_b = int((100.0 * b) / (a + b) + 0.5)
                if int_a == A and int_b == B:
                    if a + b < ans[0] + ans[1]:
                        ans = [a, b]
            except ZeroDivisionError:
                pass
    return ans


def main(args):
    A, B = map(float, input().split())
    ans = solve(A, B)
    print(sum(ans))


if __name__ == '__main__':
    main(sys.argv[1:])