import java.io.*;
public class EvenOddExample{
    public static int evenSum(int n){
        int sum=0;
    for(int i=1;i<=n;i++){
      if(i%2==0){
         sum+=i;
      }
        }
        return sum;
    }
    public static int oddSum(int n){
        int sum=0;
    for(int i=1;i<=n;i++){
      if(i%2!=0){
         sum+=i;
      }
        }
        return sum;
    }
    public static void main(String[]args)throws Exception{

      BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
      System.out.println("Enter Number: ");
      int n=Integer.parseInt(br.readLine());
      System.out.println("Sum of Odd Numbers between 1 and "+n+" are: "+oddSum(n));
      System.out.println("Sum of Even Numbers between 1 and "+n+" are : "+evenSum(n));
    }
}