2.2) Write a program that asks two people for their names; stores the names 
in variables called name1 and name2; says hello to both of them. 

#!/usr/bin/env python
#
# A program for greeting people

name1 = raw_input ("What is the first name? ")
name2 = raw_input ("What is the second name? ")
print "Hello, " + name1+ " and " + name2 + "! How are you?"

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3.2) Write a script that asks a user for a number. The script adds 3 to 
that number. Then multiplies the result by 2, subtracts 4, subtracts 
twice the original number, adds 3, then prints the result. 

1. Version:

#!/usr/bin/env python
#
# Magically guessing a number

number = input ("Please, type in a number: ")

newresult = ((number + 3) * 2) - 4
finalresult = newresult - (2 * number) + 3

print "The result is", finalresult

--------------------------------------------------

2. Version:

#!/usr/bin/env python
#
# Magically guessing a number

number = input ("Please, type in a number: ")

number2 = number + 3
number2 = number2 * 2
number2 = number2 - 4
number2 = number2 - (2 * number)
number2 = number2 + 3

print "The result is", number2

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3. Version:

#!/usr/bin/env python
#
# Magically guessing a number

number = input ("Please, type in a number: ")

print "The result is",
print ((number + 3) * 2) - 4 - (2 * number) + 3