Question: Password. A new computer owner creates a password consisting of five characters. She randomly selects a letter of the alphabet for the first character and

Password. A new computer owner creates a password consisting of five characters. She randomly selects a letter of the alphabet for the first character and a digit (0, 1, 2, 3, 4, 5, 6, 7, 8, 9) for each of the other four characters; the digits may be reused, so there are 10 possibilities for each of the four characters.
What is the probability that her password is A1234?

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