Odd Even
Problem
You have to find the even sum and odd sum for a given number N.
Even sum means the sum of all even numbers which are less than or equal to N and odd sum is the sum of all odd numbers less than or equal to N.
Input
The only line of input contains a single integer N
Output
Print 2 space integers corresponding to the odd and even sum.
Constraints
0 ≤ N ≤ 109
Time Limit: 0.5
Memory Limit: 256
Source Limit:
Explanation
There is only 1 even number 2 which is less than equal to 2.
There is only 1 odd number 1 less than equal to 2.
