# 1. Write a print statement to print "Congratualations! You could now do Python programming!"


# 2. Assign 3.14159 to a variable pi

# 3. Assign 3 to a variable diameter

# 4. Create a variable called 'radius' equal to half the diameter

# 5. Create a variable called 'area', using the formula for the area of a circle

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a = 6
b = 10
# 6. Add code to swap a and b, (so that a refers to the object previously referred to by b and vice versa).



# 7. Add parentheses to the following expression so that it evaluates to 1.
5 - 3 // 2

# 8. Add parentheses to the following expression so that it evaluates to 0
8 - 3 * 2 - 1 + 1

# 9. The code cell below may look like ASCII art, but it's actually a valid Python expression. Can you guess its value? Once you've made a prediction, uncomment and run the expression.
#7------3

# 10. Suppose we want to create two variables, a and b , both initialized to 0. After that, try a=b=0 and check the value of a and b.