package main

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

func nextInt(sc *bufio.Scanner) int {
	sc.Scan()
	t, _ := strconv.Atoi(sc.Text())
	return t
}

func min(a, b int) int {
	if a >= b {
		return b
	}
	return a
}

func main() {
	var n int
	fmt.Scan(&n)
	a := make([]int, n)
	sc := bufio.NewScanner(os.Stdin)
	sc.Split(bufio.ScanWords)
	mind := 1000000
	for i := 0; i < n; i++ {
		a[i] = nextInt(sc)
		if i > 0 {
			mind = min(a[i]-a[i-1], mind)
		}
	}
	fmt.Println(mind)
	fmt.Println(a[n-1] - a[0])
}