#include <stdio.h>
#include <stdlib.h>

int main()
{

    int grade;

    printf("Enter your grade: ");
    scanf("%d", &grade);
    printf("Grade: %d\n", grade);

    if (grade >= 80)
        printf("Exellent Job!\n");

    if (grade >= 60 && grade < 80)
        printf("Not bad ...\n");

    if (grade < 60)
        printf("Oh... You didn't pass.\n");

    return 0;
}