n = int(input("Enter a no.: "))

SUM = 0

for i in range(0,n+1):
    SUM += i

print(SUM)

70aa22fe96a4dff0e6c08ce0514a46b836bfef39
<mask token>

<mask token>
for i in range(0, n + 1):
    SUM += i
print(SUM)

n = int(input('Enter a no.: '))
SUM = 0
for i in range(0, n + 1):
    SUM += i
print(SUM)

n = int(input("Enter a no.: "))

SUM = 0

for i in range(0,n+1):
    SUM += i

print(SUM)
