def isLucky(tick):
s1=0
s2=0
for i in range(3):
s1+=tick % 10
tick//=10
for i in range(3):
s2+=tick % 10
tick//=10
return (s1==s2)
n=123007
if isLucky(n):
print(str(n)+" is lucky")
else:
print(str(n)+" is not lucky")
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