// Arup Guha
// 9/7/2011
// If stmt intro

int main() {

    // Get the user's age.
    int age;
    printf("How old are you?\n");
    scanf("%d", &age);

    // Evaluate different boolean expressions and print out their values.
    // For "correct" evaluations, put in == in age = 21.
    int ans1 = (age = 21);
    int ans2 = (age < 21);
    int ans3 = (age > 21);
    printf("1=%d 2=%d 3=%d\n", ans1, ans2, ans3);

    // You are legal to drink a beer.
    if (age >= 21) {
        printf("Enjoy your beer!\n");
        printf("Do you want Guiness or Sierra Nevada?\n");
    }

    // You are not!
    else {
        printf("Hope root beer is okay!\n");
        printf("Only %d more years before you get beer!\n", 21-age);
    }

    // End greeting that always gets printed.
    printf("Enjoy your day!\n");

    return 0;
}