How to get integer and character from input and display them in c

#include<stdio.h>
void main()
{




 int r,m;
 char variable;
 printf("Enter the grad of student");
 scanf("%c",&variable);
 printf("Enter the roll no of student");
 scanf("%d",&r);
 printf("Enter the marks of student");
 scanf("%d",&m);


// now display the student information




printf("\n");
printf("Rollno of student is %d",r);
printf("\n");
printf("Marks of student is %d",m);
printf("\n");
printf("Grade of student is%c", variable);
}