5

#include<stdio.h>
int main()
{
    int marks;
    printf("Enter your Number:");
    scanf("%d",&marks);
    if(marks>=80&&marks<=100)
    {
        printf("Grade = A+\n");
    }
    else if(marks>=70&&marks<80)
    {
        printf("Grade = A\n");
    }
    else if(marks>=60&&marks<70)
    {
        printf("Grade = A-\n");
    }
     else if(marks>=50&&marks<60)
    {
        printf("Grade = B\n");
    }
     else if(marks>=40&&marks<50)
    {
        printf("Grade = C\n");
    }
     else if(marks>=33&&marks<40)
    {
        printf("Grade = D\n");
    }
    else
    {
        printf("Fail!!\n");
    }
return 0;
}