package main

import (
	"bufio"
	"fmt"
	"os"
	"strconv"
)

func main() {
	sc := bufio.NewScanner(os.Stdin)
	sc.Split(bufio.ScanWords)
	sc.Scan()
	n, _ := strconv.Atoi(sc.Text())
	min, max := 10000000001, 0
	sc.Scan()
	f, _ := strconv.Atoi(sc.Text())
	o := f
	var x int
	for i := 0; i < n-1; i++ {
		sc.Scan()
		x, _ = strconv.Atoi(sc.Text())
		if min > x-o {
			min = x - o
		}
		o = x
	}
	max = x - f
	fmt.Println(min)
	fmt.Println(max)
}