Write the code to

STEP $0$:

Change the values in the letters array to letters. Instead of $1,2,3,4$ use letters, any $4$ different letters.

STEP $1$:

Move the first element of the array to bits $24-31,2$nd element to bits $16-23,$ the $3$rd element to bits $8$ to $15$ and the fourth element to bits $0$ to $7.$ You must use a for loop. Then print the value of the integer in hexadecimal.

STEP $2$:

Using a for loop and your integer variable in step $1,$ copy the bits to a new array $($char revert$[4]$;$)$ putting bits