#include <stdio.h>

int main() {
    int N =0;
    int x = 0;//表偶数
    scanf("%d",&N);
   for (int i = 1;i<=N ; i++) {
        if (i%2==0) {
            x++;
        } 
   }
   printf("%d %d",N-x,x);
    return 0;
}