Codeforces 688B. Lovely Palindromes solution

   ///La ilaha illellahu muhammadur rasulullah

///******Bismillahir-Rahmanir-Rahim******///

///Abul Hasnat  Tonmoy

///Department of CSE,23rd batch

///Islamic University,Bangladesh

#include <bits/stdc++.h>

using namespace std;

int main()

{

    long long  i,n;

    string s,cs;

    cin>>s;

    cs=s;

    for(i=s.size()-1; i>=0; i--)

    {

        cs+=s[i];

    }

    cout<<cs<<endl;

}