How to Use C to write this Program?

[junner]

A Company wants to transmit data over the telephone,
but they are concerned that their phones might be tapped.
All the data is trasmitted with the encrypt the 4 digit integer.
You need to write a program that will decrypt thier data so that it
may be read by user. Your program should read four digit integers
and decrypt as follow:

* Retrieve each digit individually and then add 3 to it modulus with 10
* You need to combine each digit back to become one integer again and print the result out.

You need to print out the decrypted digit, example digit 9012 will be decrypted as 2345 and 3456 will be decrypt as 6789.

[r035198x]

A Company wants to transmit data over the telephone,
but they are concerned that their phones might be tapped.
All the data is trasmitted with the encrypt the 4 digit integer.
You need to write a program that will decrypt thier data so that it
may be read by user. Your program should read four digit integers
and decrypt as follow:

* Retrieve each digit individually and then add 3 to it modulus with 10
* You need to combine each digit back to become one integer again and print the result out.

You need to print out the decrypted digit, example digit 9012 will be decrypted as 2345 and 3456 will be decrypt as 6789.

See the guidelines in the thread at the top of this forum.

[Silent1Mezzo]

What do you think you need to write a program like this?
Have you started it? If so what have you got so far?

You need to write the program and we can help you with errors or any parts your stuck on...We're not going to write it for you

[TRScheel]

A Company wants to transmit data over the telephone,
but they are concerned that their phones might be tapped.
All the data is trasmitted with the encrypt the 4 digit integer.
You need to write a program that will decrypt thier data so that it
may be read by user. Your program should read four digit integers
and decrypt as follow:

* Retrieve each digit individually and then add 3 to it modulus with 10
* You need to combine each digit back to become one integer again and print the result out.

You need to print out the decrypted digit, example digit 9012 will be decrypted as 2345 and 3456 will be decrypt as 6789.

Hmm, well sounds like you gave us the instruction set. Now lets break this apart. You need to:

A) Recieve the information
B) Decrypt it based on the set rules
C) Display it to the user
D) Loop?

From there, expand each point to figure out how to do it.