import java.lang.*;
import java.io.*;

class Student {
	
	String name;
	int roll_no;
	int sub1,sub2;
	int total;
	float per;
	
	void getdata() throws IOException {
		
		BufferedReader br = new BufferedReader(new InputStreamReader(System.in));
		System.out.println ("Enter Name of Student");
		name = br.readLine();
		
		System.out.println ("Enter Roll No. of Student");
		roll_no = Integer.parseInt(br.readLine());
		
		System.out.println ("Enter marks out of 100 of 1st subject");
		sub1 = Integer.parseInt(br.readLine());
		
		System.out.println ("Enter marks out of 100 of 2nd subject");
		sub2 = Integer.parseInt(br.readLine());
	}

	void show() {
		
		total=sub1+sub2;
		per=(total*100)/200;
		System.out.println ("Roll No. = "+roll_no);
		System.out.println ("Name = "+name);
		System.out.println ("Marks of 1st Subject = "+sub1);
		System.out.println ("Marks of 2nd Subject = "+sub2);
		System.out.println ("Total Marks = "+total);
		System.out.println ("Percentage = "+per+"%");
	}
}

public class StudentDemo {

	public static void main(String[] args) throws IOException {
		
		Student s=new Student();
		s.getdata();
		s.show();
	}
}