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hanoi.m4 revision 1.2 
      1  1.1  cgd define(hanoi, `trans(A, B, C, $1)')
      2  1.1  cgd 
      3  1.1  cgd define(moved,`move disk from $1 to $2
      4  1.1  cgd ')
      5  1.1  cgd 
      6  1.1  cgd define(trans, `ifelse($4,1,`moved($1,$2)',
      7  1.1  cgd 	`trans($1,$3,$2,DECR($4))moved($1,$2)trans($3,$2,$1,DECR($4))')')
      8