#include<iostream>
using namespace std;
int main ()
{
long long int a[99],n,sum=0,nd,max=0,br=1;	
cin>>n;
for(int i=0;i<n-1;i++)
{
cin>>a[i];
if(a[i]==a[i+1]) {br++;if(br>max)max=br;br=1;}
else br=1;
} 
cout<<max<<endl;
return 0;	
} 
