#include<iostream>
using namespace std;
int main(){
	
	int n,k=0;
	cin>>n;
	long long a[2200],c[2200],b,ans;	
    for(int i=1;i<=n;i++){
    	cin>>b;
    	a[i]=b;
    	if(b==a[i-1]) c[k]++;  
    	else k++;	
    }
    for(int j=0;j<n;j++){   
        if (c[j]>ans) ans=c[j];
	}
	cout<<ans+1<<endl;
	return 0;
}