Python question

import random
s = random.randomint (0,9987) # I picked randomly just in case there is a problem with the value of s

sum = 0
a = 0
while True:
    a += 1
    sum += a
    if sum > s:
        break
print(sum)

sum = 0
a = 0
while sum < s:
    a += 1
    sum += a
    # If sum > s: # <--- These two lines are actually unnecessary.
    #     This is the case when you think about the principle of operation of break # <--- while.
print(sum)