The following program uses a decision structure to decide if a user-entered
value is reasonable. You will ask the user for an age, and, if the age is less than 10, you tell the user the age isn't valid, and give the user another chance to enter a value greater than 10. If the age is 10 or greater, you tell the user the age is valid. In any case, after the second attempt, the user receives the message that they are entered a valid age.