class Student{
	int a;
	int b;
	Student (int x,int y){
		a=x;
		b=y;
		}
	}
public class Student1 extends Student{
	int c;
	Student1(int m,int n,int z){
		super(m,n);
		c=a+b+z;
		}
	public static void main (String arg[]){
		Student1 s1=new Student1(3,4,5);
		System.out.println(s1.c);
		}
	}