n = int(input())
a, b, c = map(int, input().split())

max_total = 0

max_z = n // 10

for z in range(max_z + 1):
    m = n - 10 * z
    if m < 0:
        continue
    y_max = m // 5
    y_opt = (m * 2) % 3  # This gives the y that makes (m - 5y) divisible by 3 (0 mod 3)
    
    candidates = {y_max, y_max - 1, y_max - 2, y_opt, y_opt + 1, y_opt - 1}
    valid = []
    for y in candidates:
        if 0 <= y <= y_max:
            valid.append(y)
    
    current_max = 0
    for y in valid:
        remaining = m - 5 * y
        if remaining < 0:
            continue
        x = remaining // 3
        total = b * y + a * x
        if total > current_max:
            current_max = total
    total_z = c * z + current_max
    if total_z > max_total:
        max_total = total_z

print(max_total)