import java.util.Scanner;

public class lab3 {
    public static void main(String[] args) {

        int C17 = 2430 % 17;
        System.out.println("\n---------------------------------------------------------------------------------------------------------------------");
        System.out.println("  C17 = " + C17 + ", So, the task is:  delete all previous occurrences of the last letter of each word of the specified text");
        System.out.println("---------------------------------------------------------------------------------------------------------------------");

        Scanner scanner = new Scanner(System.in);
        String input = null;
        while (input == null || input.isEmpty()) {
            System.out.print("\nEnter a string: ");
            input = scanner.nextLine();
        }
        try {
            StringBuilder sb = new StringBuilder(input);
            String[] words = sb.toString().split("\\s+");
            for (int i = 0; i < words.length; i++) {
                String word = words[i];
                char lastLetter = word.charAt(word.length() - 1);
                String newWord = "";
                for (int j = 0; j < word.length() - 1; j++) {
                    if (word.charAt(j) != lastLetter) {
                        newWord += word.charAt(j);
                    }
                }
                newWord += lastLetter;
                words[i] = newWord;
            }
            System.out.print("\nFinal string: ");
            System.out.println(String.join(" ", words));
        } catch (Exception e) {
            System.out.println("An error occurred: " + e.getMessage());
        }
    }
}