import sys
sys.setrecursionlimit(10000000)
MOD = 10 ** 9 + 7
INF = 10 ** 15

def main():
    N = int(input())
    dp = 1
    for i in range(1,N):
        dp = dp * (2*i + 2)*(2*i + 1)//2 % MOD
    print(dp)
if __name__ == '__main__':
    main()