Probability of getting 1 when a fair dice is rolled.

Can anyone help me with the approach for this question?

Question:

boy rolls an unbiased die until he gets ‘1’.You are given a number n find the total sum of probability that he will get ‘1’ on or before nth trial.(Probability of getting 1 at 1 time + probability of getting 1 at 2 trial….+probability of getting 1 at nth trial)

Constraints

1<=n<=1000

Input Description:
You are given a number ‘n’.

Output Description:
Print two numbers denoting numerator and denominator

Sample Input :
1

Sample Output :
1 6