// Online C++ compiler to run C++ program online
#include <iostream>
using namespace std;
int main() {
    
    int arr[1000], n=0;
    
    while(cin >> arr[n]) n++; 
    
    
    

    int maxLen = 1, currLen = 1,num = arr[0];
    for(int i = 0; i < n; i++){
        if(arr[i] == arr[i - 1]){
            currLen++;
            if(currLen > maxLen){
                maxLen = currLen;
                num = arr[i];
            }
        }else {
            currLen = 1;
        }
    }
    cout  <<  maxLen<< "\n";
    return 0;
}