/* package whatever; // don't place package name! */
 
import java.util.*;
import java.lang.*;
import java.io.*;
 
public class Main {
    public static void main(String[] args) throws IOException {
        BufferedReader rd = new BufferedReader(new InputStreamReader(System.in));
        int seqMax = 1;
        int seqCurrent = 1;
        int currentInt = Integer.parseInt(rd.readLine());
        for (int i = 1; i < 10; i++) {
        	int nextInt = Integer.parseInt(rd.readLine());
            if (currentInt == nextInt){
                seqCurrent++;
                if (seqCurrent > seqMax) seqMax = seqCurrent;
                } else {
                currentInt = nextInt;
                seqCurrent = 1;
            }
        }
        System.out.println(seqMax);
    }
}

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MTEyCjExCjExCjExCjEKMgoyCjMKMwo0

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