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

bool cool(bool a, bool b, bool c) {
	return (a && b) || (b && c);
}

int main() {
	//Print out simple truth table
	printf(" a b c | S\n-------+---\n");

	unsigned int i = 0, j;
	bool bits[3];
	for (; i < 8; i++) {
		//Calculate the bits
		for (j = 0; j < 3; j++)
			bits[j] = (i >> j) & 1;
		
		//Print row
		printf(
			" %d %d %d | %d\n",
			bits[2],
			bits[1],
			bits[0],
			cool(bits[0], bits[1], bits[2])
		);
	}
}