def print_digits(n):
if not isinstance(n, int):
return
if n > 0:
print_digits(n/10)
print n%10,
print_digits(1889)
print
print_digits(325)
ZGVmIHByaW50X2RpZ2l0cyhuKToKCWlmIG5vdCBpc2luc3RhbmNlKG4sIGludCk6CgkJcmV0dXJuCglpZiBuID4gMDoKCQlwcmludF9kaWdpdHMobi8xMCkKCQlwcmludCBuJTEwLAoJCnByaW50X2RpZ2l0cygxODg5KQpwcmludApwcmludF9kaWdpdHMoMzI1KQoK