def devisors(n):
    d = []
    a = 1
    while a * a < n:
        if n % a == 0:
            d.append(a)
            d.append(n // a)
        a += 1
    if a * a == n:
        d.append(a)
    return d

MOD = 10 ** 9 + 7
n = int(input())
c = [0] + list(map(int, input().split()))
for i in range(10):
    if c[i] == n:
        print(i * (pow(10, n, MOD) - 1) * pow(9, MOD - 2, MOD) % MOD)
        exit(0)
s = 0
for i in range(9):
    s += i * c[i]
ans = 1
if c[4] + c[8] == n:
    ans *= 4
elif c[0] + c[2] + c[4] + c[6] + c[8] == n:
    ans *= 2
if c[0] + c[5] == n:
    ans *= 5
if s % 9 == 0:
    ans *= 9
elif s % 3 == 0:
    ans *= 3
s = set(devisors(ans))
for i in range(1, 10):
    for j in range(1, i):
        if c[i] > 0 and c[j] > 0:
            if len(s) == 0:
                s = set(devisors(i * 10 + j - j * 10 - i))
            else:
                s &= set(devisors(i * 10 + j - j * 10 - i))
print(max(s))