what is the output of this C code

	#include <stdio.h>
	struct point
	{
	int x;
	int y;
	};
	struct notpoint
	{
	int x;
	int y;
	};
	int main()
	{
	struct point p1={10,20};
	struct point p2={-10,-20};
	p1=p2;
	printf("%d\t%d",p1.x,p1.y);
	struct notpoint p3={100,200};
	p3=p1;
	printf("%d\t%d",p3.x,p3.y);
	if(p3>p2)
	{
	printf("hello\n");
	}
	else
	{
	printf("C programming\n");
	}
	return 0;
	}

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output :
compilation error in line 19 , as you can not assign two structures of different types
also there is a compilation error in line 21 as rational operators can not be applied on structures