Problem 1 (10 points)

Write a function called square that takes an integer as
parameter and returns the square of that number.
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Problem 2 (15 points)

Write a function called print_sum_squares that takes two
integers as parameters and prints the sum of the squares
of those two numbers.  This function shouldn't return anything
(Note: You must call the function from Problem 1.)
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Problem 3 (10 points)

Write a function called sum_neg which takes two integers as
parameters and returns true if the sum of its two parameters
is negative.  Otherwise it returns false.
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Problem 4 (15 points)

Write a function called abs_val that takes two integers
as parameters, and makes the second parameter be the 
absolute value of the first parameter.  The function should
not return anything.  
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Problem 5 (20 points)

Write a function called same_nums which takes three integers
as parameters.  The function returns 3 if all three of its
parameters are the same.  The function returns 2 if any two
if its parameters are the same but the other one is different.
The function returns 1 if all of its parameters are different.
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Problem 6 (30 points)

Write a program that reads in three integers.  If the sum of
the first two numbers is negative, it prints out the absolute
value of the third number.  If all three numbers are different,
it prints out the sum of the squares of the first two numbers.
If any two of the numbers is the same but the other is different,
it prints out the sum of the squares of the second and third number
read in.  (You must call all the functions from problems 2 to 5,
but not problem 1.)  
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