Loss In Respect

Mr. Respect is a teacher at the nerd school and in his class he has assigned extra study hours to each student $A_i$ where $i$ can range from $(1<= i <= 100)$. After, the result he makes a new list of extra study hours for students $B_i$ but the problem is that the students of nerd school are a little different they hate it when there study hours are increased or decreased or even given to other