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

bool f() {
	bool isFound = false;
    return isFound;
}

int main(void) {
	// could write simply puts(f() ? "It's true" : "It's false");
	if (f()) {
		puts("It's true");
	} else {
		puts("It's false");
	}
	return 0;
}