a one-to-one function and its inverse can be used to make information secure. the function is used to encrypt a message, and its inverse is used to decrypt the encrypted message. the following numerical values are assigned to each letter of the alphabet:

A-1

B-2

C-3

D-4

E-5

F-6

G-7

H-8

I-9

J-10

K-11

L-12

M-13

N-14

O-15

P-16

Q-17

R-18

S-19

T-20

U-21

V-22

W-23

X-24

Y-25

Z-26

using the following function f(x)=3x-1, the message "HELLO" would be encrypted 23 14 35 44 since H corresponds to 8 and f(8)-1=23,etc.

How do i write an encrypted message?