Repeated digit on a plate

EasyCombinatorics~3m

A license plate is $2$ letters ( $A$ – $Z$ ) followed by $3$ digits ( $0$ – $9$ ). How many plates have at least one repeated digit among the three digits (the letters are unrestricted)?

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Count the complement: plates whose three digits are all distinct.
$26^2\cdot 10^3 - 26^2\cdot(10\cdot 9\cdot 8)$ .

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Repeated digit on a plate

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