package main

import . "fmt"
import . "os"
import bf "bufio"

func main() {
	rd:=bf.NewReader(Stdin)
	var n int
	Fscan(rd,&n)
	var sum int64
	a:=make([]int64,n)
	for i:=range a {
		Fscan(rd,&a[i])
		sum+=a[i]
	}
	if sum%int64(n)!= 0 {
		Println("No")
		return
	}
	avg:=sum/int64(n)
	var diff int64
	for _,v:=range a {
		diff += avg-v
	}
	if diff==0 {
		Println("Yes")
	} else {
		Println("No")
	}
}