abdusabirovdavlat555

Ответ:

1 способ: for

i = 2

a = 0

for i in range(i, 51):

a = a + i

print(a)

2 способ: while

i = 2

a = 0

while i < 50:

i = i + 1

a = a + i

print(a)

3 способ: арифметическая прогрессия

a = (2 + 50 ) / 2 * 50

print (a)