Example 1
Example 2
2 <= s.length <= 200s consists of lowercase and uppercase English letters, spaces, and digits from 1 to 9.The number of words in s is between 1 and 9.The words in s are separated by a single space.s contains no leading or trailing spaces.Example 1
Example 2
2 <= s.length <= 200s consists of lowercase and uppercase English letters, spaces, and digits from 1 to 9.The number of words in s is between 1 and 9.The words in s are separated by a single space.s contains no leading or trailing spaces.