first, 4 - 4; q( d* n! w- e
if one side more heavy, take up and check next. if equal, then the uncheck 4 take to check next.
! s! q9 A$ e' Y0 |$ P& t1 P& a4 usecond, 2 - 2公仔箱論壇$ t' K* V8 L, C, g! X) T
take the different 4 spread to 2 - 2 and check it. more heavy side take up to the next step.公仔箱論壇; ]0 h: X8 f2 M q, {, G
third, 1 - 1
! |" r: z# H& g: ^9 j- Nbingo!! |