Write a program in Pascal language that allows user to enter a students name and mark obtained in a Maths examination. The program should prompt user to enter name and mark, check that mark is in the range 0 <= mark <= 100 otherwise asks for the mark again. The program outputs the students name and grade. Grades are awarded according to the following grade boundaries. 80 < mark <= 100 grade A 60 < mark <= 80 grade B 40 < mark <= 60 grade C mark <= 40 failed