1#tb 0: 1/90000
20,          0,          0,     1875,    36000, 0xd592781d
30,       1875,       1875,     1875,    36000, 0xd592781d
40,       3750,       3750,     1875,    36000, 0xd592781d
50,       5625,       5625,     1200,    23056, 0xde81f0d6, F=0x3
6