How do I get the power of a number in python?
The pow() function returns the value of x to the power of y in python. 
The syntax for the pow() looks like this:
```
a = 4 # a is the base number.
b = 3 # b is the exponent, or the power that a would be raised to.
c = 5 # c is an optional parameter for the pow() function. c here is the modulus.

x = pow(a,b,c) # This is the same as (4 * 4 * 4) % 5

# Remember, the third parameter, ie. c here is optional. Hence, pow() can also be written as following:
y = pow(4,3) # This is the same as 4 * 4 * 4.

print(x) # The output would be 12.
print(y) # The output would be 64.
```
Can you explain the x = pow(a,b,c) a bit more? I find it a little bit confusing.