first, 4 - 4
: M9 t5 u. \0 O( hif one side more heavy, take up and check next. if equal, then the uncheck 4 take to check next.5.39.217.76% ^$ |: {) \2 @. ^+ u- ^
second, 2 - 29 X2 \! g( ]+ p( y) W3 U7 b2 Y# h
take the different 4 spread to 2 - 2 and check it. more heavy side take up to the next step.
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bingo!! |