After students submit the admission form, they will receive an application number which can let students to check the cu

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After students submit the admission form, they will receive an
application number which can let students to check the current
admission status or change the admission programme before the
deadline. Ai Dai University will also use this application number
as students' ID number for the future. Ai Dai want to use DDPPNNNNN
where:o DD is the code for disciplinee.g. ‘IT’ is the code for the
Discipline of Information Technologyo PP is the programme codeo
NNNNN is the sequence number
Explain what are the problems for such code design to use as
application number.