Read a $2-$character string from input into variable inString. Declare a Boolean variable isValid and assign isValid with true if the

following conditions are met:

inString does not contain two of the same character.

For alphabetic characters, inString does not contain two of the same letter $($regardless of case$).$

Otherwise, assign isValid with false.

Ex: If the input is $3\%,$ then isValid is assigned with true, so the output is:

String is valid

Ex: If the input is $Jj,$ then isValid is assigned with false, so the output is:

String is not valid

Note: Use inString $=$ scnr$.$nextLine$()$ to read the entire line from input into inString.