import java.util.Scanner;

public class five {

    private String str1;
    private String str2;

    public five(String str1, String str2) {
        this.str1 = str1;
        this.str2 = str2;
    }

    public int usrstrcmp() {
        int len1 = str1.length();
        int len2 = str2.length();
        for (int i = 0; i < Math.min(len1, len2); i++) {
            if (str1.charAt(i) < str2.charAt(i)) {
                return -1;
            } else if (str1.charAt(i) > str2.charAt(i)) {
                return 1;
            }
        }
        if (len1 < len2) {
            return -1;
        } else if (len1 > len2) {
            return 1;
        }
        return 0;
    }

    public int usrstrcmp(int n) {
        if (n > str1.length() || n > str2.length()) {
            System.out.println("Invalid input: n is larger than string length.");
            return -2;
        }
        for (int i = 0; i < n; i++) {
            if (str1.charAt(i) < str2.charAt(i)) {
                return -1;
            } else if (str1.charAt(i) > str2.charAt(i)) {
                return 1;
            }
        }
        return 0;
    }

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        System.out.print("Enter first string: ");
        String str1 = scanner.nextLine();
        System.out.print("Enter second string: ");
        String str2 = scanner.nextLine();
        System.out.print("Enter number of characters to compare: ");
        int n = scanner.nextInt();

        five compare = new five(str1, str2);

        System.out.println("\nComparing full strings:");
        int result1 = compare.usrstrcmp();
        if (result1 == 0) {
            System.out.println("Strings are equal");
        } else if (result1 == -1) {
            System.out.println("First string is smaller");
        } else {
            System.out.println("First string is greater");
        }

        System.out.println("\nComparing first " + n + " characters:");
        int result2 = compare.usrstrcmp(n);
        if (result2 == 0) {
            System.out.println("First " + n + " characters are equal.");
        } else if (result2 == -1) {
            System.out.println("First " + n + " characters of first string are smaller.");
        } else if (result2 == 1) {
            System.out.println("First " + n + " characters of first string are greater.");
        } else {
            System.out.println("Error in comparison.");
        }

        scanner.close();
    }
}