R, P, Q = map(int, input().split())
L = list(map(int, input().split()))

def judge(x):
    if x*3 > sum(L):
        return False
    move = 0
    for i in range(3):
        m = max(0, x - L[i])
        move += m
    if x * P + Q * move <= R:
        return True
    else:
        return False

l = 0
r = sum(L)//3 + 1
while r-l>1:
    c = (r+l)//2
    if judge(c):
        l = c
    else:
        r = c
print(l)