#define _CRT_SECURE_NO_WARNINGS
#include <iostream>
#include <cstdio>
#include <math.h>
#include <string>
using namespace std;
//int temp[105];
int cnt[105];
int n;
int main() {
scanf("%d", &n);
for (int i = 1;i <= n;++i) {
int a;
scanf("%d", &a);
cnt[a]++;
}
int ans = 0;
for (int i = 1;i <= 100;++i) {
if (ans < cnt[i]) {
ans = cnt[i];
}
}
printf("%d\n", ans);
//system("pause");
return 0;
}