### Problem: String Encryption

Write a method Encrypt(char letter), which encrypts a given letter in the following way:

• It takes the first and the last digit from the ASCII code of the letter and concatenates them into a string, which will represent the result.
• In the beginning of the string, which represents the result, we will insert the symbol which matches the following condition:
• ASCII code of the letter + the last digit of the ASCII code of the letter.
• After that in the end of the string, which represents the result, you concatenate the character which matches the following condition:
• ASCII code of the letter - the first digit of the ASCII code of the letter.
• The method should return the encrypted string.

Example:

• j → p16i
• ASCII code of j is 106 → First digit - 1, last digit - 6.
• We concatenate the first and the last digit → 16.
• At the beginning of the string, which represents the result, concatenate the symbol, which you get from the sum of the ASCII code + the last digit → 106 + 6 → 112 → p.
• At the end of the string, which represents the result, concatenate the symbol, which you get from subtracting the ASCII code - the first digit → 106 - 1 → 105 → i.

Using the method shown above, write a program which takes a sequence of characters, encrypts them and prints the result on one line.

The input data will always be valid. The Main method must read the data given by the user – an integer n, followed by a character for each of the following n lines.

Encrypt the symbols and add them to the encrypted string. In the end, as a result, you must print an encrypted string as in the following example.

Example:

• S, o, f, t, U, n, i → V83Kp11nh12ez16sZ85Mn10mn15h

#### Sample Input and Output

Input Output
7
S
o
f
t
U
n
i
V83Kp11nh12ez16sZ85Mn10mn15h
Input Output
7
B
i
r
a
H
a
x
H66<n15hv14qh97XJ72Ah97xx10w