public class CaesarCipher {
    public static String encrypt(String plaintext, int shift) {
        StringBuilder ciphertext = new StringBuilder();
        for (int i = 0; i  plaintext.length(); i++) {
            char c = plaintext.charAt(i);
            if (Character.isLetter(c)) {
                c = (char) (((c - 'a' + shift) % 26) + 'a');
            }
            ciphertext.append(c);
        }
        return ciphertext.toString();
    }
    public static String decrypt(String ciphertext, int shift) {
        StringBuilder plaintext = new StringBuilder();
        for (int i = 0; i  ciphertext.length(); i++) {
            char c = ciphertext.charAt(i);
            if (Character.isLetter(c)) {
                c = (char) (((c - 'a' - shift + 26) % 26) + 'a');
            }
            plaintext.append(c);
        }
        return plaintext.toString();
    }
    public static void main(String[] args) {
        String plaintext = "hello world";
        int shift = 3;
        String ciphertext = encrypt(plaintext, shift);
        System.out.println("Ciphertext: " + ciphertext);
        String decryptedText = decrypt(ciphertext, shift);
        System.out.println("Decrypted text: " + decryptedText);
    }
}

If Input Text is " Sookshmas" what is its cipher text?