#include <stdio.h>
#include <conio.h>
char name[30]; 
float  midterm;
float final;
float total;
float score;
int grade;
main()
{
 printf("Program by Yotsapon no.6");
 printf("\ninput name : ");
 scanf(" %s",&name);
 printf("\ninput score point : ");
 scanf(" %g",&score);
 printf("\ninput midterm point : ");
 scanf(" %g",&midterm);
 printf("\ninput final point : ");
 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);
}