F 4 9 10 July 8, 2019 16 32 64 128 9f 9 f 4 )= 8 10 9f 9f 9 f 4 )= 8 10 9ff F4 9 1/5 F4 9 5/5 F4 10 3/5 F4 thailand 9 1/5 F4 thailand 9 2/5