import java.util.*;
import java.lang.*;
import java.io.*;
import java.text.SimpleDateFormat;  
import java.util.Date; 
import java.util.Calendar;
// The main method must be in a class named "Main".
class Main {
    public static void main(String[] args)throws Exception {
        String sDate1="2023-07-12";  
        Date date1=new SimpleDateFormat("yyyy-MM-dd").parse(sDate1);  
        Calendar c = Calendar.getInstance();
        c.setTime(date1);
        int dayOfMonth = c.get(Calendar.DAY_OF_MONTH);
        System.out.println(dayOfMonth);  
    }
}