Hamster problem please help !!?

I ran out of hamster food and cant go to the petstore cause im sick and i have the midterm exams but only 2 days left till i finish them and hopfully be well and after that i can go to the petshop so what can i feed them till i can go to the petshop? Is bread ok ? And no one can go to the petstore for me because all my freinds are having exams including my sister and my father traveled and my mom is studying for my sister and has alot of work at this time so everyone is busy so dont tell me to let someone else get it for me :)