#include <stdio.h>
#include <conio.h>
char name[30]; 
float  midterm;
float final;
float total;
float score;
int grade;
main()
{
	printf("Program by poonnawat no.3");
	printf("\n--------------------------------------------------------------------------");
	printf("\ninput name : ");
	scanf(" %s",&name);
	printf("\ninput score : ");
	scanf(" %g",&score);
	printf("\ninput midterm : ");
	scanf(" %g",&midterm);
	printf("\ninput final : ");
	scanf(" %g",&final	);
    total = score + midterm + final ;
    printf("score total= %g",total);
	if(total<=50)
    printf("\n grade you %s is grade = 1" ,name);
	else if(total<=60)
	printf("\n grade you %s is grade = 2" ,name);
	 else if(total<=70)
	printf("\n grade you %s is grade = 3" ,name);
    else if(total >=80)
	printf("\n grade you %s is grade = 4" ,name);
}