first, 4 - 4# l% H5 b0 p: c
if one side more heavy, take up and check next. if equal, then the uncheck 4 take to check next.
& B( E% P! x: P; t" ssecond, 2 - 2
. G8 ~' r! Z2 F, M) [+ U6 m9 wtake the different 4 spread to 2 - 2 and check it. more heavy side take up to the next step.9 S. ~$ ^2 e1 ?# k7 c/ }
third, 1 - 1/ Q! M5 l0 s( f4 O$ J/ _
bingo!! |