Complete the following in python

Given the information below

Name	Sex	Grade
Amy	Female	90
Ben	Male	50
Cathy	Female	20
Daniel	Male	40
John	Male	90
Susan	Female	100

Now we want to group students into different segmentations. The conditions are:

If sex is Female and grade is greater than 60, it is in group A.

If sex is Female and grade is less and equal to 60, it is in group B.

If sex is Male and grade is greater than 60, it is in group C.

If sex is Male and grade is less and equal to 60, it is in group D.

Requirement:

Use while loop and if statement to finish the program. The whole process must run automatically. Comment each line of your code (comments start with #) showing what this line does. And print all the actions, for example, Cathy is added to group A! , All the students have been assigned!