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printing characters of string from the end to the beginning using range in python

i want it to print every character in the string but from the end to the beginning of the string (inverted),it does not show any syntax error so whats the problem . i tried using print i in range(end,beginning) method but it does not show any output . but it does not say its a syntax error or anything

s="John000Doe000123"
for i in range(len(s),0) :
 print (s[i])

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for c in s[::-1]:
    print(c)

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