2 the 9s
while 1:
try:
a=input()
x=a
if a=='0':
break
if int(a)%9!=0:
print(str(a)+' is not a multiple of 9.')
elif a=='9':
print('9 is a multiple of 9 and has 9-degree 1.')
else:
c=0
while int(a)>10:
sum=0
for i in str(a):
sum+=int(i)
c+=1
a=sum
print(str(x)+' is a multiple of 9 and has 9-degree '+str(c)+'.')
except:
break
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