a.py

# https://twitter.com/nanaio627/status/813413642439835649

import sys

def diff(a):
    b = []
    for i in range(len(a)-1):
        b.append(a[i+1]-a[i])
    return b

N=int(sys.argv[1])
a=[i**N for i in range(1,N+4)]
#print a
for i in range(N):
    a = diff(a)
    #print a
b=filter(lambda x: x!=a[0], a[1:])
print N, len(b)==0