i think that will be 4公仔箱論壇- n" S7 A" v; F( W8 Y" ]. q. ], I x5 E
if you list all the number from 1 to 10
: L: X( j+ o! E+ ^ k0 I i公仔箱論壇seperate them into 3 groups
! v, W+ @7 Y+ g* l! M" Oos.tvboxnow.comfrom 1 to 4 has 2 numbers between them& o, s) }- s0 a* ]7 u
from 4 to 7 has 2 numbers between them' b: t1 [2 A+ c2 V# q2 u: W
from 7 to 10 has 2 numbers between them
6 r H# i5 P# q: ]$ b* P( y公仔箱論壇so if you ask 1/3 of 10os.tvboxnow.com. z7 e8 f& J! _
that will be 4 |