package de.codegym.task.task08.task0812;
import java.io.*;
import java.util.ArrayList;
/*
Längste Sequenz
*/
import java.util.Scanner;
public class Solution {
public static void main(String[] args) throws IOException {
Scanner scan = new Scanner(System.in);
ArrayList<Integer> liste = new ArrayList<>();
for(int i = 0; i < 10; i++){
int a = scan.nextInt();
liste.add(a);
}
int counter = 0;
int maxCounter = 0;
for(int i = liste.size() - 1; i > 0; i--){
if(liste.get(i) == liste.get(i -1)){
counter++;
}
if(counter > maxCounter){
maxCounter = counter;
}
}
System.out.println(maxCounter);
}
}