//#include "pch.h"
#include <iostream>
#include <cmath>

using namespace std;

#define max(a,b) (((a) > (b)) ? (a) : (b))

int main()
{
    int prev, cur;
    cin >> prev;
    if (prev)
    {
        cin >> cur;
        int count = 1, count_max = 1;
        int diff_prev = cur - prev;

        while (cur)
        {
            int diff_cur = cur - prev;
            if (diff_prev * diff_cur > 0)
            {
                count++;
            }
            else if (diff_prev * diff_cur == 0)
            {
                count = 1;
            }
            else
            {
                count = 2;
            }
            count_max = max(count_max, count);
            diff_prev = diff_cur;
            prev = cur;
            cin >> cur;
        }
        cout << count_max;
    }
    else
    {
        cout << 0;
    }

    return 0;
}