I. Construct a simple application program that asks a user for grade inputs, displays the average of a student's grades from 3 subjects, and determines whether it is a pass or fail while considering the following ranges:
* 100 = A+
* 95-99 = A
* 90-94 = A-
* 87-89 = B+
* 84-86 = B
* 81-83 = B-
* 78-80 = C+
* 75-77 = C
* 74 and below = F