#include<bits/stdc++.h>
using namespace std;

inline string resverse(string& str)
{
    int l = 0, r = str.size()-1;
    while(r>l)
    {
        swap(str[l],str[r]);
        l++;
        r--;
    }
    return str;
}

string func(string str)
{
    string out;
    int index = 0;
    int count = 0;
    while(index<str.size())
    {
        count = index;
        while(index<str.size()&&str[index] == ' ')
        {
            index++;
        }
        string t = str.substr(count,index-count);
        out+=resverse(t);
        out+=" ";
    }
    out.pop_back();
    return out;
}

int main()
{
 return 0;























 }