#include <stdio.h>

int main()
{
    int x;
    printf("Enter the marks: ");
    scanf("%i",&x);
    printf("%i \n",x);
    if (x<=100 && x>85)
    {printf("The Gade of the student is A");}
    else if (x<=85 && x>60)
    {printf("The Grade of the student is B+");}
    else if (x<=60 && x>40)
    {printf("The Grade of th student is B");}
    else if (x<=40 && x>30)
    {printf("The Grade of the student is C");}
    else 
    {printf("The Grade of the student is F");}
    return 0;
}