The 3n + 1 problem

while 1:
	try:
		a,b=map(int,input().split())
		x,y=min(a,b),max(a,b)
		maxi=0
		for i in range(x,y+1):
			count=0
			while i!=1:
				if i%2==1:
					i=3*i+1
				else:
					i/=2
				count+=1
			if count>maxi:
				maxi=count
		print(a,b,maxi+1)
	except:
		break

You can say 11

while 1:
	try:
		a=int(input())
		if a==0:
			break
		if a%11==0:
			print(str(a)+' is a multiple of 11.')
		else:
			print(str(a)+' is not a multiple of 11.')
	except:
		break