//MULTILEVEL INHERITENCE
#include
#include

class student
	{
	protected:
	int roll_number;
	public:
	void get_number(int);
	void put_number();
	};

	void student::get_number(int a)
		{
		roll_number=a;
		}
	void student::put_number()
		{cout<<"\nRoll.No.:"<
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