Letter Combination

package NestedLoops;

import java.util.Scanner;

public class LetterCombination {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        char startSymbol = scanner.nextLine().charAt(0);
        char endSymbol = scanner.nextLine().charAt(0);
        char ignoreSymbol = scanner.nextLine().charAt(0);
        int counter = 0;

        for (char i = startSymbol; i <= endSymbol; i++) {
            for (char j = startSymbol; j <= endSymbol; j++) {
                for (char k = startSymbol; k <= endSymbol; k++) {
                    if (i != ignoreSymbol && j != ignoreSymbol && k != ignoreSymbol) {
                        System.out.print("" + i + j + k + " ");
                        counter++;
                    }
                }
            }
        }
        System.out.println(counter);
    }
}