Most Frequent Word
Print the word that appears most often; break ties by dictionary order.
Input: one line with words separated by single spaces.
Output: the most frequent word (lexicographically smallest on ties).
Constraints:
- 1 to 200 words of lowercase letters
Sample Tests
Input 1
cat dog cat bird dog cat
Output 1
cat
Input 2
b a
Output 2
a
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