Amara is trying to memorise a new 10-digit passcode for her office security door. When her colleague whispered the code to her, she immediately forgot it because she was distracted by a loud alarm. Later, when she successfully wrote it down, she kept repeating it over and over to herself until she could type it in. However, when tested the next morning, she could only remember the first three digits and the very last digit.

Discuss the multi-store model of memory. Refer to Amara's experiences in your answer.