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 := 10000000001
	a := make([]int, n)
	for i := 0; i < n; i++ {
		sc.Scan()
		a[i], _ = strconv.Atoi(sc.Text())
	}
	for i := 0; i < n-1; i++ {
		if min > a[i+1]-a[i] {
			min = a[i+1] - a[i]
		}
	}
	fmt.Printf("%d\n%d\n", min, a[n-1]-a[0])
}