0	1	2	3	4	5	6	7	8	9	10	11	12	13	14	15	16	17	18	19	20	21	22	23	24	25	26	27	28	29	30
-810
-811
-812
-813
-814
-815
-816
-817
-818
-819
-820
-821
-822
-823
-824
-825
-826
-827
-828
-829
-830
-831
-832
-833
-834
-835
-836
-837
-838
-839
-840