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This Kata is shamelessly copied from the one for the Craftsmen-Coding-Contest.

To complete this Kata, your task is to implement a program that

  1. sends START as UTF-8 encoded UDP message to a well-known port on a server
  2. listens for a reply message containing a simple mathematical task (on the port from which the start message was sent)
  3. calculates the result
  4. sends the result to the server
  5. repeats until message is either ALL CORRECT or something like 3 WRONG, 2 CORRECT

The content of the messages are strings with the following structure:


where <function> is one of ADD, MULTIPLY, SUBTRACT. Parameters are integers. There are at least two parameters, but there can be more.

Example server messages are:

  1. ADD:4160806a2f2846759d6c7e764f4bcbd5:184:106:107
  2. SUBTRACT:45429b851ac549fc9e2e38f9ee289061:27:107:91:55
  3. MULTIPLY:6868c974bf7140eabb18b826bedacd54:175:126:172:119

The structure of the expected response are:


The correct responses for the example server messages are respectively:

  1. 4160806a2f2846759d6c7e764f4bcbd5:397
  2. 45429b851ac549fc9e2e38f9ee289061:-226
  3. 6868c974bf7140eabb18b826bedacd54:451319400

The goals of the Kata are to make you comfortable with the socket interface of your chosen language and the structure of a text-based protocol similiar to the protocol used in the Craftsmen-Coding-Contest.

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