int main(){
int r1, r2;
r1 = 0; r2 = 0;
printf("0, 0 answer %i\n", r1 || r2 ? 1 : 0);
r1 = 0; r2 = 1;
printf("0, 0 answer %i\n", r1 || r2 ? 1 : 0);
r1 = 1; r2 = 0;
printf("0, 0 answer %i\n", r1 || r2 ? 1 : 0);
r1 = 1; r2 = 1;
printf("0, 0 answer %i\n", r1 || r2 ? 1 : 0);
return 0;
}