Escape From Apartment

You and your two cousins had just entered college and so you all had to shift together to stay in an apartment close to your college. It is a good idea because staying alone can turn out to be too expensive and very lonely as well. You all had your individual keys to the door and so you did not have to wait for each other to enter or leave the apartment. However, you had just lost your key last evening and you forgot to inform your cousins about it. This morning, they leave the apartment before you and as always they lock the door from outside. After some time you wake up and get ready to leave for college and then you realize that you do not have the key to the door. You must find a way to get out of there as you have to attend the college for an examination.