import java.util.Scanner; import java.util.Stack; public class Main{ public static void main(String[] args){ Scanner in = new Scanner(System.in); while(in.hasNext()){ Stack sta = new Stack(); int num = in.nextInt(); String s = Integer.toString(num); for(int i = 0;i<s.length();i++){ sta.push(s.charAt(i)); } for(int j = 0;j<s.length();j++){ System.out.print(sta.pop()); } } } }