In each question, the first and the last sentences of the passage are numbered S1 and S6 respectively. The rest of the passage is split into four parts. These four sentences are jumbled. Read the sentences and identify their correct and logical order.

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S1: Your letter was big relief.
P : How did you exams go?
Q : After your result, you must come here for a week.
R : You hadn't written for over a month.
S : I am sure you will come out with flying colours.
S6: But don't forget to bring chocolate for Geetha.
The Proper sequence should be: