#include<iostream>
#include<string>
using namespace std;
int main(){
    string s;
    getline (cin,s);
    int start=0;
    for(int i=0;i<=s.length();i++){
        if(i==s.length()||s[i]==''){
            int left =start;
            int right =i-1;
            while(left<right){
                char temp=s[left];
                s[left]=s[right];
                s[right]=temp;
                left++;
                right--;
            }
            start=i+1;
        }
    }
    cout<<s;
    return 0;
}