a = 10 # Variable declaration

a = a + 5
p a 

#a = a + 5 # Right side happens first, so a = 15.
a += 5 # Adds 5 to the value of a and then making it equal to a.

b = 100
p b # Outputs b as 100

#b = b - 50
b -= 50 
p b # Outputs b as 50.

c = 3 
p c # Returns 3
#c = c * 4
c *= 4 # Returns 12

d = 10 
d /= 3

p d  # Returns 3

e = 7
e %= 3

p e # Returns 1

f = 103

f **= 9 

p f # Returns 1304773183829244583