Letters Combinations

import java.util.Scanner;
public class Task6181216 {
    public static void main(String[] args){

        int combinations=0;
        char startChar, endChar, excludeChar;
        Scanner scanner = new Scanner(System.in);
        StringBuilder sb = new StringBuilder();

        startChar  = scanner.nextLine().charAt(0);
        endChar  = scanner.nextLine().charAt(0);
        excludeChar  = scanner.nextLine().charAt(0);


        for (char i = startChar; i <= endChar ; i++) {
            if (i==excludeChar){
                continue;
            }
            for (char j = startChar; j <= endChar ; j++) {
                if (j==excludeChar){
                    continue;
                }
                for (char k = startChar; k <= endChar ; k++) {
                    if (k==excludeChar) {
                        continue;
                    }
                    combinations++;
                    sb.append(i);
                    sb.append(j);
                    sb.append(k);
                    sb.append(" ");

                }

            }

        }
        System.out.print(sb.toString());
        System.out.println(combinations);

    }
}