#define N 2
#define TESTS \
T (0,	0, 0) \
T (1,	0, 1) \
T (2,	0, 2) \
T (3,	0, 3) \
T (4,	1, 0) \
T (5,	1, 1) \
T (6,	1, 2) \
T (7,	1, 3) \
T (8,	2, 0) \
T (9,	2, 1) \
T (10,	2, 2) \
T (11,	2, 3) \
T (12,	3, 0) \
T (13,	3, 1) \
T (14,	3, 2) \
T (15,	3, 3)
#define EXPTESTS