#import mpmath

x = int(input())
if x >= 21:
    print(0)
    exit()
dic = {2: 1000000, 3: 355065, 4: 153009, 5: 70685, 6: 33758, 7: 16414, 8: 8065, 9: 3988, 10: 1979, 11: 985, 12: 491, 13: 245, 14: 122, 15: 61, 16: 30, 17: 15, 18: 7, 19: 3, 20: 1}
print(dic[x])
'''
dic = dict()
for k in range(2,21):
    ans_ = 1
    for i in range(2,k):
        ans_ -= mpmath.zeta(i,1)-1
    dic[k] = int(ans_*10**6)
print(dic)
'''