MOD = 10**9 + 7

def main():
    K = int(input())
    if K % 2 != 0:
        print(0)
        return
    
    n = K
    k = K // 2
    
    if n > MOD:
        print(0)
        return
    
    def comb(n, k, mod):
        if k < 0 or k > n:
            return 0
        numerator = 1
        for i in range(n, n - k, -1):
            numerator = numerator * i % mod
        denominator = 1
        for i in range(1, k + 1):
            denominator = denominator * i % mod
        return numerator * pow(denominator, mod - 2, mod) % mod
    
    print(comb(n, k, MOD))

if __name__ == "__main__":
    main()