can anyone help me to solve this problem as im still new to Python. Tq

1. Read all the marks from the List, apply the following Grade rules and then display the mark and the respective grades as follow

mark for 23 students (75, 45, 89, 55, 65, 50, 72, 70, 60, 80, 95, 34, 83, 71, 65, 53, 58, 79, 85, 21, 67, 94,77)
0-49 - U
50-59- D
60-69 - C
70-79- B
80-89- A
90-100- A*

the output should be displayed as follows ;
Mark [0] - 75 - B
Mark [1] - 45 - U
Mark [2] - 89 - A
......

2. Also count how many total number of grade A*, A grades, B grades, C grades, D grades and U grades and display on to the screen as follow:

Grade A* - 2
Grade A - 4
Grade B - 6
.....