import java.util.*;

import java.lang.*;

import java.io.*;

/* Name of the class has to be "Main" only if the class is public. */

class ceaser {

public static void main(String[] args) throws java.lang.Exception {

System.out.println("Enter a message for Encryption:");

Scanner sc = new Scanner(System.in);

String s = sc.nextLine().toLowerCase();

System.out.println("Enter the key:");

int key = sc.nextInt() % 26;

sc.nextLine();

// String input = sc.nextLine().toLowerCase();

// if (input.charAt(0) == 'e') {

System.out.println("Encrypted text: "+encryption(s, key));

// } else {

// System.out.println("Decrypted text: "+decryption(s, key));

System.out.println("19DCE111:- Ravi Patel");

// }

}

public static String encryption(String s, int key) {

int n = s.length();

String ans = "";

for (int i = 0; i < n; i++) {

char a = s.charAt(i);

if ((int) a == 32) {

ans += a;

continue;

}

int last = ((((int) a + key) - 97) % 26) + 97;

a = (char) (last);

ans = ans + a;

}

return ans;

}

public static String decryption(String s, int key) {

int n = s.length();

String ans = "";

for (int i = 0; i < n; i++) {

char a = s.charAt(i);

if ((int) a == 32) {

ans += a;

continue;

}

int last = (((int) a - key) - 97);

if (last < 0) {

last += 26;

}

last += 97;

a = (char) (last);

ans = ans + a;

}

return ans;

}

}