430 1 and 4336, 430 1 are official of Hunan University, and 4336 is said to be the enrollment code of "international cooperation" project.
430 1 is a school and major of Hunan University.
One is a school of Hunan University with two majors.
Different majors, different admission scores, and different diplomas.
The landlord can look at the admission scores for reference and ask more questions.