Problem:
Score : 300 points

Problem Statement

How many integer sequences A_1,A_2,\ldots,A_N of length N satisfy all of the following conditions?

0 \leq A_i \leq 9

There exists some i such that A_i=0 holds.

There exists some i such that A_i=9 holds.

The answer can be very large, so output it modulo 10^9 + 7.

Constraints

1 \leq N \leq 10^6

N is an integer.

Input

Input is given from Standard Input in the following format:

N

Output

Print the answer modulo 10^9 + 7.

Sample Input 1

2

Sample Output 1

2

Two sequences \{0,9\} and \{9,0\} satisfy all conditions.

Sample Input 2

1

Sample Output 2

0

Sample Input 3

869121

Sample Output 3

2511445

Solution in Python (3.8.2) (judge verdict: Accepted)

n = int(input())
a = 10**9+7
if n==1:
    print(0)
else:
    ans = 1
    b = 1
    c = 1
    for _ in range(n):
        b *= 9
        c *= 8
        b %= a
        c %= a
        ans *= 10
        ans %= a
    ans = (ans-2*b+c)%a
    if ans< 0:
        ans += a
    print(ans)