UVA- 11332 || Summing Digits

 11332 - Summing Digits: 

try:

while True:

n = int(input())

if n == 0:

break

if n<10:

print(n)

if n>9:

while n>9:

result = 0

while n>0:

result = result + n%10

n = n//10

n = result

print(result)

except EOFError:

pass