package main

import (
	"fmt"
	"reflect"
)

func Sum(a []int) int {
	ret := 0
	for i := 0; i < len(a); i++ {
		ret += a[i]
	}
	return ret
}

func resolve(N int, A []int) string {
	total := 0
	B := make([]int, N)
	C := make([]int, N)
	for _, a := range []int{2, 4} {
		t := A[0] + a
		for i := 0; i < N; i++ {
			B[i] = t - A[i]
		}
		for i := 0; i < N; i++ {
			C[i] = Sum(B[:i]) + Sum(B[i+1:])
		}
		if reflect.DeepEqual(A, C) == false {
			continue
		}
		total = t
		break
	}
	if total == 0 {
		return "???"
	}

	turu := 0
	kame := 0
	for i := 0; i < N; i++ {
		switch total - A[i] {
		case 2:
			turu += 1
		case 4:
			kame += 1
		}
	}
	return fmt.Sprintf("%d %d", turu, kame)
}

func main() {
	var N int

	fmt.Scanf("%d\n", &N)
	A := make([]int, N)
	for i := 0; i < N; i++ {
		fmt.Scanf("%d", &A[i])
	}
	fmt.Scanf("\n")

	fmt.Println(resolve(N, A))
}