import java.util.Scanner;

class Main{
    public static void main(String[] a){
			Scanner input = new Scanner(System.in);
			String OrigWord = input.nextLine();
			int OrigLen = OrigWord.length(); 
			String NewWord = "";
			for (int x=OrigLen-1; x >= 0; x--){
				
				NewWord = NewWord + (OrigWord.charAt(x)); 
				
			}
						
			System.out.println(NewWord);
		    input.close();
	}

}
/tmp/hf-datasets-cache/medium/datasets/42704881117311-config-parquet-and-info-qiankunmu-Project_CodeNet-896c9d36/hub/datasets--qiankunmu--Project_CodeNet_Python800_and_Java250/snapshots/c899fde44a77ba1cc14973ed3de064e4ff3aadc7/Project_CodeNet_Java250.tar.gz