n, m = [int(x) for x in input().split()]
a = []
for _ in range(m):
    a.append(int(input()))

mod = 1000000007

dp = [0]*(n+1)
dp[0] = 1

for i in range(1, n+1):
    dp[i] = (dp[i-1] + dp[i-2]) % mod
    if i in a:
        dp[i] = 0
    print(dp)

print(dp[n])