'''
Given an array nums of integers, return how many of them contain an even number of digits.

Example 1:
Input: nums = [12,345,2,6,7896]
Output: 2
Explanation:
12 contains 2 digits (even number of digits).
345 contains 3 digits (odd number of digits).
2 contains 1 digit (odd number of digits).
6 contains 1 digit (odd number of digits).
7896 contains 4 digits (even number of digits).
Therefore only 12 and 7896 contain an even number of digits.
Example 2:
Input: nums = [555,901,482,1771]
Output: 1
Explanation:
Only 1771 contains an even number of digits.
'''

# class kar():
#     def findevennum(self, nums):
#         return len([x for x in nums if len(str(nums))%2 == 0])

def findevennum(nums):
    return len([x for x in nums if len(str(nums)) % 2 == 0])
print(findevennum([12,345,2,6,7896]))