In this problem, your job is to calculate the probability of a certain event. This event is picking 2 distinct numbers from the set {1,2,3,....,N}
and having the first number > second number + 3
The probability can be expressed in A/B
where A and B are coprime
The input will consist of one line consisting of one integer N
(10 <= N <= 10^9
).
The output will consist of one single line consisting of two integers, A and B, seperated by a space
30
117 290