my_list = [21, 32, 43, 54, 75]
print("The list is : ")
for i in range(0, len(my_list)):
    print(my_list[i])
print("The list after reversal is : ")
for i in range(len(my_list)-1, -1, -1):
    print(my_list[i])

The list is :
21
32
43
54
75
The list after reversal is :
75
54
43
32
21