In this assignment, you will be learning Scheme through the use of DrRacket. We start with some basic concepts; trying to understand prefix notation and using procedures in Scheme. You may only use the procedures shown in the text and slides also see below for three prohibited forms in this assignment - not any of the additional library procedures in R5RS Scheme. Solve the following questions in the .rkt template provided.

4. Define a procedure "read-for-square" to read a value for the square procedure defined above. This procedure takes no parameters and will take an input value from keyboard and pass to the Square procedure defined above. > (read-for-square) ; enter 5 from keyboard 25 5. Define a procedure "diff-squares" that will compute the difference between the square values of 2 inputs. You must implement the read-for-square procedure defined above. This procedure should never return a negative value, as it should return the absolute value. >(diff-squares)51075;input;input;output