One of the high school's registration Department is responsible for issuing identification numbers to new students each year to study. Generally requires that the student identification number is the primary key, all the first 7 second from the left is the number of years of education. The third principle is a number instead of a grade of students. The other four remaining main section will give you a random computer out. You shall find all the identification number that the school's registration Department, issued in a single academic year.
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