Calculate the sum of three given numbers python code example

Example 1: find the sum of all the multiples of 3 or 5 below 1000 python

nums = [3, 5]

result = 0
for i in range(0,1000):
    if i%3 == 0 or i%5 == 0:
        result += i

print(result)

Example 2: how to return the sum of two numbers python

def add(a, b):
  return a + b