C :

#include <stdio.h>
#include <stdlib.h>
int main()
{
	int n;
	scanf("%d",&n);
	int i;
	int sum1=0,sum2=0;
	for(i=1;i<=n;i++)
	{
		if(i%2!=0)
			sum1+=i;
		else
			sum2+=i;
	}
	printf("%d %d",sum1,sum2);
	return 0;
}
//Author: ITProgrammer

Python :

n = int(input())
s = 0
t = 0
for i in range(1, n + 1):
    if i % 2 == 0:
        s += i
    if i % 2 == 1:
        t += i
print(str(t)+' '+str(s))