import lib
data = open(0).read().strip()

part_1 = True
def maximize(tspr, score, ks):
    if ks == [] or tspr == 0:
        r = 1
        for s in score[:-1]:
            if s < 0:
                return 0
            r *= s
        if part_1:
            return r
        elif score[-1] == 500:
            return r
        else:
            return 0
    
    m = 0
    for tsp in range(tspr + 1):
        dscore = [v * tsp  for v in ks[0]]
        nscore = list(map(sum, zip(score, dscore)))
        nm = maximize(tspr - tsp, nscore, ks[1:])
        m = max(m, nm)
    return m

ks = []
for line in data.splitlines():
    k = lib.str_to_ints(line)
    ks.append(k)

score = [0 for _ in range(len(ks[0]))]
print(maximize(100, score, ks))