mod = 10**9+7

n = int(input())
if(n <= 3):
	print(0)
	exit(0)
	
ans = 0
for i in range(2**n):
    t = i
    while(t >= 10):
        if(t % 16 == 10):
            ans += 1
            break
        t //= 2

print(ans % mod)