@ @¶ìÿa@óÝy‹¾a@ u@ @WT : 3 × 4 × 5 × × 2006 [AMC82006] ( ) 2005 ( ) 234 2005 ) 1003 ( ) 1002 ( ) 1 () [AMC82006] ( 18 ( ) 17 ( ) 16 ( ) 13 ( ) . [AMC82006] ( ) . + + + 26 ( ) 25 ( ) 24 ( ) 16 ( ) [AMC82007] ( ) 10