class Solution {
public:
    string reverseWords(string s) {

        istringstream in(s);

        vector<string>a;
        string ans;
        string word;
        while(in >> word)
        {
            a.push_back(word);
            //cout<<word<<" ";
        }

        for(int i=(int)a.size()-1; i>=0; i--)
        {
            if(i == (int)a.size()-1)
                ans=a[i];
            else
             ans +=" "+a[i];
            cout<<a[i]<<" ";
        }

        return ans;
    }
};