'''LAB 11 : WAPP to demonstrate the following options
by creating different methods using binary files for
a hospital management application :
(i) adding records of the structure : (pat_id,pat_name,diagnosis,fees)
(ii)reading and displaying all the records in a
tabular format
(iii)searching and displaying patients who have 'corona'. Display if no such patient.
(iv)update the file to decrease the fees of a given patient by 10%.Display if not found.
'''