`S_(1)` : When you have to study for examination, you have many thigs to do.
`S_(6)` : The final aim, of course, is to pass the examination that is two months away.
P : Suppose you have only two months to do it.
Q : The time-table tells you what you have to do everyday and for how many hours.
R : You have to read number of books, learn tables and formulas.
S : Then the bes way is to make a time-table for yourself.
Which one of the following is the correct sequence?