SPECIFICATION

• You will name your function that does the conversion as convert. convert will take exactly one argument which is the integer to be converted.
• If the input is not an integer then the function shall return the string

  "The argument is not an integer"

• If the input is not an integer in the specified range then the function shall return the string

  "In school we have not seen yet how to express this!"

• You are allowed to write other functions that you will use in the definition of convert. You are free in naming them.
• You shall try to write short and concise functions. This will influence the grade you will get.