> Please note! We will use the **counter** variable often in our tasks to perform any simple math operations. 
For example, if we want to add 2 and 3, we need to create
the *counter*, set ``counter = 0``, and then add 2 and 3 to the *counter*:
*counter* = 0 + 2 + 3 = 5 => *counter* = 5. We should use this kind of variable or we won't be able to handle the implementation of simple math operations.

counter = 0

# Summing all numbers from 50 to 100 (included)
for i in range(50, 101):
  counter += i

# Printing the counter
print(counter)

We start learning Python loops with the for loop. A for loop is used for iterating over a sequence. Let's go!

With the while loop, we can execute a set of statements as long as a condition is true. We are going to work with this loop and handle different problems!

A nested loop is a loop inside a loop. Sound difficult? Don't worry! We will handle this loop!