In a sequence of integers, the number of times an integer occurs is called the frequency of the integer.  Given a sequence of integers, find the highest frequency.

입력 형식

The first line contains a single integer N (1 ≤ N ≤ 10000) denoting the number of integers in the sequence.  Each of the subsequent N lines contains an integer n (1 ≤ n ≤ 1000) in the sequence.

출력 형식

The output contains an integer that is the highest frequency of the sequence.

예제 입력 1

12
1
2
5
6
3
7
11
345
754
2
5
2

예제 출력 1

3

예제 입력 2

7
2
4
6
7
7
2
4

예제 출력 2

2