MOD = 10**9 + 7

p, k = map(int, input().split())

# Compute 10^(p-1) mod MOD
exponent = p - 1
v = pow(10, exponent, MOD)

# Compute (v - 1) mod MOD
numerator = (v - 1) % MOD

# Compute the inverse of p modulo MOD
inv_p = pow(p, MOD - 2, MOD)

# The answer is (numerator * inv_p) mod MOD
print((numerator * inv_p) % MOD)