ref	1	1
ref	2	1
ref	3	1
ref	4	1
ref	5	2
ref	6	2
ref	7	2
ref	8	2
ref	9	2
ref	10	3
ref	11	3
ref	12	3
ref	13	2
ref	14	3
ref	15	3
ref	16	3
ref	17	3
ref	18	3
ref	19	1
ref	20	3
ref	21	2
ref	22	2
ref	23	2
ref	24	2
ref	25	1
ref	26	1
ref	27	1
ref	28	0
ref	29	1
