package main

import (
	"fmt"
	"sort"
)

func main() {
	var n int
	fmt.Scan(&n)

	var a = make([]int, n)
	for i := 0; i < n; i++ {
		fmt.Scan(&a[i])
	}

	sort.Ints(a)

	var i, ans = 0, 0
	for i < n {
		var lb = sort.SearchInts(a, a[i]-1)

		var ub = sort.Search(n, func(x int) bool {
			return a[x] > a[i]
		})

		var t = ub - lb
		// fmt.Println(i, a[i], lb, ub, t)

		if t > ans {
			ans = t
		}
		i = ub
	}

	fmt.Println(ans)
}