m = 1000000007

N, *c = map(int, open(0).read().split())

x = 1
for i in range(N - 1):
    x *= i + 1
    x %= m

result = 0
t = 1
for _ in range(N):
    for i in range(9):
        result += t * (i + 1) * x
        result %= m
    t *= 10
    t %= m
print(result)