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import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Scanner;
/**
 * 闰秒
 *
 * @see <a href='http://hihocoder.com/contest/hiho235/problem/1'/>
 * @author liudongrong
 * @date 2018/12/31 14:54
 */
public class Main {
    public static void main(String[] args) throws ParseException {
        Scanner scanner = new Scanner(System.in);
        String a = scanner.nextLine();
        String b = scanner.nextLine();
        SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        Date datea = simpleDateFormat.parse(a);
        Date dateb = simpleDateFormat.parse(b);
        long l = (dateb.getTime() - datea.getTime())/1000;
        String[] strs = {
                "1972-06-30 23:59:60",
                "1972-12-31 23:59:60",
                "1973-12-31 23:59:60",
                "1974-12-31 23:59:60",
                "1975-12-31 23:59:60",
                "1976-12-31 23:59:60",
                "1977-12-31 23:59:60",
                "1978-12-31 23:59:60",
                "1979-12-31 23:59:60",
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