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@ @SQ@             @†a‡Èÿa@                                 @

        1 + 2 + 3 + 4 + 5 + 6 + 7 + 8 + 9 + 55
        10 10 10 10 10 10 10 10 10 10

10 ( )   9( )            6.4 ( )           41 ()

                                             2

                                           [AJHSME 1994] (  )

6()          4( )            2( )          0 ()

10 ( )   N                                 [AJHSME 1994] ( )

W +Y                                       36
XZ
         9( )                8( )          N +2
25 ( )
         ZY XW                               7 ()
72
                                           [AJHSME 1994] (  )

               .{1,2, 3, 4, 5,6, 7, 8, 9}

                   :         W +Y
                             XZ

         17 ( )              3( )          2 ()
                         17 17
         72
              ZY      X                    [AJHSME 1994] (  )

              XXX

                    YX
         +X

YYZ ( )  YYX ( )         XYZ ( )           XXY ( )
   39   40   41   42   43   44   45   46   47   48   49