// Arup Guha
// 9/7/2011
// if-else if-else if construct

#include <stdio.h>

int main() {

    // Get the user's grade.
    int grade;
    printf("enter your grade\n");
    scanf("%d", &grade);

    // One big if statement with several branches.
    // If you change "else if" to "if", then we have
    // four separate if statements, which work differently.
    if (grade >= 90) {
        printf("You get an A!\n");
    }
    else if (grade >= 80) {
        printf("You get an B!\n");
    }
    else if (grade >= 70) {
        printf("You get an C!\n");
    }
    else if (grade >= 60) {
        printf("You get an D!\n");
    }
    else {
        printf("You get a F.\n");
    }

    return 0;
}