'''
If we list all the natural numbers below 10 that are multiples of 3 or 5, we get 3, 5, 6 and 9. The sum of these multiples is 23.

Find the sum of all the multiples of 3 or 5 below 1000.
'''

i = 1
limit = 1000
sum = 0
while i < limit:
    # add number if it is divisible by 3 or 5
    if((i % 3 == 0) or (i % 5 == 0)):
        sum+=i
    i+=1

print(sum)

'''
If we list all the natural numbers below 10 that are multiples of 3 or 5, we get 3, 5, 6 and 9. The sum of these multiples is 23.

Find the sum of all the multiples of 3 or 5 below 1000.
'''

i = 1
limit = 1000
sum = 0
while i < limit:
    # add number if it is divisible by 3 or 5
    if((i % 3 == 0) or (i % 5 == 0)):
        sum+=i
    i+=1

print(sum)

If we list all the natural numbers below 10 that are multiples of 3 or 5, we get 3, 5, 6 and 9. The sum of these multiples is 23.  Find the sum of all the multiples of 3 or 5 below 1000. # add number if it is divisible by 3 or 5