from myfunc import sum_of_digits
max = 0
for a in xrange(100):
for b in xrange(100):
sum = sum_of_digits(a**b)
if (sum > max):
max = sum
print max
from myfunc import sum_of_digits
count = 0
for i in xrange(10**9):
if (sum_of_digits(i) == sum_of_digits(137*i)):
count += 1
print count
from myfunc import sum_of_digits print sum_of_digits(2**1000)