import java.util.Scanner;  

interface StringFunction {  
    String reverse(String input);  
}  
public class StringLambdaExample1 {  
    public static void main(String[] args) {  
    
        Scanner scanner = new Scanner(System.in);  
 
        StringFunction reverseFunction = (str) -> {  
            String reversedString = "";  
  
            for (int index = str.length() - 1; index >= 0; index--) {  
              
                reversedString += str.charAt(index);  
            }
            return reversedString;  
        };  
        String fixedString = " javaTpoint";  
        System.out.println("Reversed word using lambda function: " + reverseFunction.reverse(fixedString));  
        System.out.println("Enter a string to be reversed:");  
        String userInput = scanner.nextLine();  
        System.out.println("After reversing: " + reverseFunction.reverse(userInput));  
        scanner.close();  
    }  
}