|
Matcom Online Grader
Faculty of Mathematics and Computer Science of University of Havana
ℹ️ We've recently migrated MOG to a new server with a different grader. As a result, some features—especially those related to submission evaluation—might not work correctly. If you encounter any issues, please report them by clicking the exclamation icon in the bottom right corner of the website.
In a long classroom, N desks are arranged in a single row, with two students sitting at each desk. Students are cranky because they are about to have a Math class, and their professor is planning to examine them.
Each student has studied, but only up to a certain level. The old professor can tell by the looks on their faces just how much they have studied. Usually, the professor uses a different coloured pencil for each grade. Unfortunately, today he brought only one pencil.
The desks are numbered from 1 to N . In order to make the examination seem fair, he wants to choose two desks and question one student from each desk positioned between the two desks he has chosen (including the chosen desks). It is important that all examined students deserve the same grades, so he can write them down using his only pencil.
The professor wants to know the maximum number of students he can examine this way, as well as which grade the students will get.
Input
The first line of input contains a single integer
Output
The first and only line of output must contain two numbers separated by a single space: the maximum
number of students the professor can examine and the grade those students will get.
If there are multiple solutions possible, output the one with the smallest grade.
Sample test(s)
Input
1
1 5
Output
1 1
Input
3
3 5
4 5
1 3
Output
2 5
Input
4
2 1
3 2
5 3
2 5
Output
2 2