static auto fast_io = []

{

    ios::sync_with_stdio(false);

	cout.tie(nullptr);

	cin.tie(nullptr);

	return 0;

}();

class Solution {

public:

    int lengthOfLastWord(string s)

    {

        string word;

        stringstream ss(s);    

        while(ss >> word) ;

        return word.size();

    }

};