# -*- coding: utf-8 -*-
# whiletest1.py

ii = 1
while ii < 5:
  print(ii)
  ii += 1
  

nn = int(input("Enter n: "))
pp = int(input("Enter power: "))

sum = 0; ii = 1
while ii <= nn:
    sum = sum + ii**pp
    ii = ii + 1
print("sum power of 1 to ", nn, "is ", sum)