import typing 
from math import factorial
import numpy as np



def main() -> typing.NoReturn:
  mod = 10 ** 9 + 7
  n = int(input())
  *c, = map(
    int, input().split(),
  )
  m = factorial(n)
  for x in c:
    m //= factorial(x)

  c = np.array(c)
  a = m // n * c
  
  d = 10 ** np.arange(n)
  d = d.sum() % mod
  s = d * a
  s *= np.arange(9) + 1
  print(s.sum() % mod)



main()