N = int(input())
length = N+1
N = "1" + "0" * N
#print(N)
mod = 10**9+7
dp = [0] * 10

for i in range(length):

    ndp = [0] * 10

    for j in range(10):#dp[j]

        for k in range(j,10):
            ndp[k] += dp[j]
            ndp[k] %= mod

    if i:

        for j in range(1,10):
            ndp[j] += 1
            ndp[j] %= mod
    dp = ndp
ans = 0
for i in dp:
    ans += i
    ans %= mod
print((ans+1)%mod)