Read a 3-character string from input into variable inputString. Declare a Boolean variable isValid and assign isValid with true if the first and second characters of inputString are both digits. Otherwise, assign isValid with false.Ex: If the input is 51x, then isValid is assigned with true, so the output is:Valid stringEx: If the input is 6#@, then isValid is assigned with false, so the output is:Invalid stringNote: Use getline(cin, inputString) to read the entire line from input into inputStri

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