mod = 1000000007
eps = 10**-9


def main():
    import sys
    input = sys.stdin.readline

    N = int(input())
    C = [0] + list(map(int, input().split()))

    nz = [0] * 10
    for i in range(1, 10):
        if C[i]:
            nz[i] = 1
    if sum(nz) == 1:
        c = 0
        for i in range(1, 10):
            if nz[i]:
                c = i
                break
        print((c * (pow(10, N, mod) - 1) * pow(9, mod-2, mod))%mod)
        exit()

    ans = 1
    # 2
    flg2 = 1
    for i in range(1, 10):
        if i % 2 and C[i]:
            flg2 = 0
            break
    if flg2:
        ans = 2
    
    # 4
    flg4 = 1
    for i in range(1, 10):
        if i % 4 and C[i]:
            flg4 = 0
            break
    if flg4:
        ans = 4

    # 3, 9
    S = 0
    for i, c in enumerate(C):
        S = S + c * i
    if S % 9 == 0:
        ans *= 9
    elif S % 3 == 0:
        ans *= 3

    # 7
    T = set()
    for i in range(1, 10):
        if C[i]:
            T.add(i)
    T = sorted(list(T))
    if T == [1, 8] or T == [2, 9]:
        if N % 6 == 0:
            ans *= 7
    print(ans)
    assert N == sum(C)
    

if __name__ == '__main__':
    main()