3 yield 0x3FF0000000000000, 0x4000000000000000
4 yield 0x4000000000000000, 0x3FF0000000000000
5 yield 0x4056C00000000000, 0x4042800000000000
6 yield 0x4056C00000000000, 0x4042EA3D70A3D70A
7 yield 0x3ff00000000000c5, 0xbd28a404211fb72b
8 yield 0x7f80000000000000, 0xff80000000000000