C Program to accept a grade and declare the equivalent description

/* Write a C Program to accept a grade and declare the equivalent description

if code is S, then print SUPER
if code is A, then print VERY GOOD
if code is B, then print FAIR
if code is Y, then print ABSENT
 if code is F, then print FAILS */

#include <stdio.h>
#include <ctype.h>
#include <string.h>

void main()
{
char remark[15];
char grade;

printf("Enter the grade\n");
scanf("%c",&grade);

grade=toupper(grade);  /* lower case letter to upper case */

switch(grade)
{
case 'S': strcpy(remark," SUPER");
break;

case 'A': strcpy(remark," VERY GOOD");
break;

case 'B': strcpy(remark," FAIR");
break;

case 'Y': strcpy(remark," ABSENT");
break;

case 'F': strcpy(remark," FAILS");
break;

default : strcpy(remark, "ERROR IN GRADE\n");
break;

}      /* End of switch */

printf("RESULT  : %s\n",remark);

}                /* End of main() */

/*-------------------------------------------
Output
RUN 1
Enter the grade
s
RESULT  :  SUPER

RUN 2
Enter the grade
y
RESULT  :  ABSENT
-----------------------------------------------*/