#include <stdio.h>


int main ()
{
	int okand[256];
	int okor[256];
	int okxor[256];
	int bitcount[256];
	int guess, hint;
	int mask;
	int i;
	for (i=0; i<256; ++i) {
		okand[i] = okor[i] = okxor[i] = 1;
		bitcount[i] = 0;
		for (mask=1; mask <= 255; mask <<= 1) {
			if (i & mask)
				bitcount[i]++;
		}
	}
	while (1) {
		printf ("Geratene Zahl und Hinweis: ");
		if ((scanf ("%d %d", &guess, &hint) != 2)
		    || (guess > 255) || (guess < 0)
		    || (hint < 0) || (hint > 8)) {
		    	printf ("Komische Zahlen!\n");
			continue;
		}
		okand[guess] = okor[guess] = okxor[guess] = 0;
		for (i=0; i<=255; ++i) {
			if (bitcount[guess & i] != hint)
				okand[i] = 0;
			if (bitcount[guess | i] != hint)
				okor[i] = 0;
			if (bitcount[guess ^ i] != hint)
				okxor[i] = 0;
		}
		for (i=0; i<=255; ++i) {
			if (okand[i] || okor[i] || okxor[i])
				break;
		}
		if (i > 255) {
			printf ("Widerspruechliche Hinweise!\n");
			break;
		}
		printf ("Versuch's mal mit %d\n", i);
	}
	return 0;
}