7 11.11

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Comparator;

import static java.lang.System.out;

public enum Main {;

    private static final int SIZE = 300;

    public static final void main(final String[] args) throws IOException {
        try (final var reader = new BufferedReader(new InputStreamReader(System.in))) {
            final var nums = new int[SIZE];

            for (var i = 0; i < SIZE; i++)
                nums[i] = Integer.parseInt(reader.readLine().trim().replace(",", "."));

            var ind = 0;
            var maxLen = 0;

            while (ind < SIZE) {
                var len = 0;

                while (ind < SIZE && nums[ind] % 2 != 0) {
                    len++; ind++;
                }

                ind++;
                maxLen = Math.max(maxLen, len);
            }

            out.println(maxLen);
        }
    }
}