def find_permutation(str, pattern):
TODO: Write your code here
#lets get the required number:
sum_required = 0
for i in range(len(pattern)):
sum_required += ord(pattern[i])
len_required = len(pattern)
start = 0
sum_arr = 0
for end in range(len(str)):
sum_arr += ord(str[end])
if end >= len_required-1:
if sum_arr == sum_required:
return True
else:
sum_arr -= ord(str[start])
start += 1
return False