-Last three digits of my roll number is 072-000001001000(binary).
-When the enable pin is on (1) and the binary entered is correct the seven segment LED shows 072.
-When the enable pin is off(0) LED shows 000 irrespective of the binary is correct or not.
-When the binary is wrong then the digital LED glows and seven segment LED shows 000.
-My roll number in hexadecimal is 48.