import java.util.*;
public class Main{
    static int N=200010;
    public static void main(String[]args){
        Scanner sc=new Scanner(System.in);
        int n=sc.nextInt();
        long rp=0;long rn=0;
        int sp=1;
        int sn=0;
        int s=1;
        while(n-->0){
            int a=sc.nextInt();
            if(a<0)s*=-1;
            if(s>0){
                rp+=sp;
                rn+=sn;
                sp++;
            }else{
                rp+=sn;
                rn+=sp;
                sn++;
            }
        }
        System.out.println(rn+" "+rp);
    }
}