Giới thiệu
include <iostream>
include <cstring>
using namespace std;
const int N = 150000;
const int mod = 14062008;
int n, k, a[N], F[N];
int main() {
// freopen("INP.TXT", "r", stdin);
// freopen("OUT.TXT", "w", stdout);
cin >> n >> k;
for (int i = 1; i <= k; ++i) {
long long m;
cin >> m;
a[m] = 1;
}
F[1] = 1;
for (int i = 2; i <= n; ++i) {
if (a[i] == 0) {
F[i] = (F[i - 1] + F[i - 2]) % mod;
}
else F[i]=0;
}
cout << F[n] << endl;
return 0;
}