#include <stdio.h>
#include <stdbool.h>

int main() {

    bool value;

    value = true;
    printf("True is %d\n", true);
    printf("False is %d\n", false);

    printf("Value is %d\n", value);

    value = false;
    printf("Value is %d\n", value);

    value = !value;
    printf("Value is %d\n", value);

    value = !value;
    printf("Value is %d\n", value);

    return 0;
}