#include <stdio.h>

int main()
{
	int answer[4] = {1, 6, 2, 6};
	int guess[4];
	int answer_matched[4], guess_matched[4];
	int trial=0, black, white;
	int i, j;

	do {
		trial++;

		black = 0;
		white = 0;

		for (i=0; i<4; i++)
		{
			answer_matched[i] = 0;
			guess_matched[i] = 0;
		}

		printf("Trial %d: ", trial);
		for (i=0; i<4; i++)
			scanf("%d", &guess[i]);

		for (i=0; i<4; i++)
			if (answer[i] == guess[i])
			{
				answer_matched[i] = 1;
				guess_matched[i] = 1;
				black++;
			}

		for (i=0; i<4; i++)
			for (j=0; j<4; j++)
				if ((answer_matched[i] == 0) && 
				    (guess_matched[j] == 0) && 
				    (answer[i] == guess[j]))
				{
					answer_matched[i] = 1;
					guess_matched[j] = 1;
					white++;
				}

		printf("%d Black, %d White\n\n", black, white);

	} while ((trial < 6) && (black < 4));

	printf("The answer is ");
	for (i=0; i<4; i++)
		printf("%d ", answer[i]);
	printf("\n\n");

	if (black == 4)
		printf("Congratulation! You win the game.\n");
	else
		printf("You lose the game\n");

	return 0;
}