You are given a string s containing words separated by spaces. Your task is to find and return the first word in the string that satisfies two conditions:
1) The word must have an even length.
2) The word's length must be the maximum among all other even-length words in the string.
If multiple words of the same maximum even length exist, you must return the one that appears first in the original string.
Input Format:
A single line containing the string s.
Output Format:
Print a single string which is the first longest even-length word.
If no even-length words are found in the string, print "00".
Note:
A word is a sequence of non-space characters.
Multiple spaces between words, as well as leading/trailing spaces, should be handled correctly.