course_id,section_id,batch_codes,instructor_code
CS101,A,25021519,1001
CS201,A,25021519,1002
CS101,B,25021520,1001
CS201,B,25021520,1002
EE101,A,25031519,1004
CS101,C,26021519,1001
CS201,C,26021519,1002
CS101,D,26021520,1001
CS201,D,26021520,1002
EE101,B,26031519,1004
GEN101,A,25021519|25021520|25031519,1002
GEN102,A,25021519|25021520|25031519,1006
GEN101,B,26021519|26021520|26031519,1002
GEN102,B,26021519|26021520|26031519,1006