public class Main {

    private static String mainKey;
    private static String mainCipher;

    public static void main(String[] args) {
        mainKey = convertToBinary("YAMEO");
        mainCipher = convertToBinary("5f67fc6c0b8e73c39188cea354bb31eb85008ae1b6c51c16a4dfd8c0509fb960a8241f6d9a8e700450d5553acabe01d3e03b4cbf3050a54en" +
                "5f67fc6c0b8e73c39188cea354bb31eb85008ae1b6c51c16a4dfd8c0509fb960a8241f6d9a8e700450d5553acabe01d3e03b4cbf3050a54en" +
                "5f67fc6c0b8e73c39188cea354bb31eb85008ae1b6c51c16743eb9f5ef229159n");

        String keyA = convertToBinary("YAMEK");
        String cipherA = convertToBinary("8f04ebe8c8c030d2413be892640ebd097455b99cd3f11ea898b0adff9ef20985a2a6a44b81c4e558637170482ee4236fc3e7504f2aeb88e3n" +
                "8f04ebe8c8c030d2413be892640ebd097455b99cd3f11ea898b0adff9ef20985a2a6a44b81c4e558637170482ee4236fc3e7504f2aeb88e3n" +
                "8f04ebe8c8c030d2413be892640ebd097455b99cd3f11ea8a0e38e1ded248b33n");

        String keyB = convertToBinary("YAMEP");
        String cipherB = convertToBinary("0bcb11158ccf687f92403f7d35365adfc8fada72657c95f7310366c67b8af50b5f839c1f02e11b08dabedaf3ccfd8ae07125640ab29265ban" +
                "0bcb11158ccf687f92403f7d35365adfc8fada72657c95f7310366c67b8af50b5f839c1f02e11b08dabedaf3ccfd8ae07125640ab29265ban" +
                "0bcb11158ccf687f92403f7d35365adfc8fada72657c95f78572d9759e58a655n");

        String keyC = convertToBinary("YAMON");
        String cipherC = convertToBinary("7b4c8b41d78a32f0aba8c10ac0411e3bf97cb2a284bedcd0d9350bc9cb67fc9438bc6fc383ebf50f35f28c2ecd2e280b677b78fb0806146fn" +
                "7b4c8b41d78a32f0aba8c10ac0411e3bf97cb2a284bedcd0d9350bc9cb67fc9438bc6fc383ebf50f35f28c2ecd2e280b677b78fb0806146fn" +
                "7b4c8b41d78a32f0aba8c10ac0411e3bf97cb2a284bedcd0908631f438a5a597n");

        check(keyA, cipherA);
        check(keyB, cipherB);
        check(keyC, cipherC);

    }

    private static String convertToBinary(String text) {
        StringBuilder builder = new StringBuilder();
        char[] textChars = text.toCharArray();
        for (char c : textChars) {
            builder.append(Integer.toBinaryString(c));
        }
        return builder.toString();
    }

    private static void check(String key, String cipher) {
        int keyDifferent = 0;
        int cipherDifferent = 0;

        for(int i=0;i<mainKey.length();i++){
            if(mainKey.charAt(i)!=key.charAt(i)){
                keyDifferent++;
            }
        }

        for(int i=0;i<mainCipher.length();i++){
            if(i>=cipher.length()) break;
            if(mainCipher.charAt(i)!=cipher.charAt(i)){
                cipherDifferent++;
            }
        }
        System.out.println("KEY: " + keyDifferent);
        System.out.println("CIPHER: " + cipherDifferent);
    }
}