import itertools
from functools import cache
import sys
sys.setrecursionlimit(10 ** 9)
import math
from collections import Counter, deque
input = lambda: sys.stdin.readline().rstrip()
mod = 998244353

r, p, q = map(int, input().split())
abcd = list(map(int, input().split()))

people = sum(abcd)
max_romania = people // 3
for i in range(3):
    if max_romania < abcd[i]:
        abcd[3] += abcd[i] - max_romania
        abcd[i] = max_romania

# print(abcd)
abc = abcd[:3]
d = abc[-1]
abc.sort()

# print(abc)
# print(d)

ans = 0
if abc[0] * p <= r:
    # print(abc)
    # print(d)
    # print(r)
    # print("---1")
    ans += abc[0]
    r -= abc[0] * p
    abc[2] -= abc[0]
    abc[1] -= abc[0]
    abc[0] -= abc[0]
    if abc[1] * (q + p) <= r:
        # print(abc)
        # print(d)
        # print(r)
        # print("---2")
        ans += abc[1]
        r -= abc[1] * (q + p)
        abc[2] -= abc[1]
        abc[1] -= abc[1]
        if abc[2] * (2 * q + p) <= r:
            # print(abc)
            # print(d)
            # print(r)
            # print("---3")
            ans += abc[2]
            print(ans)
        else:
            print(ans + r // (2 * q + p))
    else:
        print(ans + r // (q + p))
else:
    print(r // p)