#include <iostream>
#include <string>

using namespace std;

int main()
{
	string str1,str2;
        int count = 1, max = 1;
	cin >> str1;
	while(cin >> str2)
	{
		if(str2 == str1)
		{
			count++;
		}
		else
		{
			count = 0;
		}
		if(count > max)
		{
			max = count;
		}
	}
	cout << max << endl;
        return 0;
}