#include <stdio.h>
main()
{
	int mark;
	printf("Enter Number");
	scanf("%d",&mark);
	if(mark>=80 &&  (mark<=100));
	{
		printf("very good\n");
	}
else;
	{
	printf("so bad");	
	}
pintf("Design by Phaichayon");
}
                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   





























































yen
yen
yen