output_description: Print the answer modulo 10^9 + 7.
  
  * * *
input_description: Input is given from Standard Input in the following format:
  
      
      
      N
attempt: N = int(input()) % 1000000007
  print((N ^ 2 - N) * (2 ** (N - 2)))
  
problem_description: 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.
samples: [{"input": "2", "output": "2\n    \n\nTwo sequences \\\\{0,9\\\\} and \\\\{9,0\\\\} satisfy all conditions.\n\n* * *"}, {"input": "1", "output": "0\n    \n\n* * *"}, {"input": "869121", "output": "2511445"}]