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  1. or download this
    splice( keys(%mh), 0, 100 ) ;
  2. or download this
    Type of arg 1 to splice must be array (not keys) at myprog.pl line 36,
+ near "100)"
Compilation failed in require at ./test.pl line 8.
BEGIN failed--compilation aborted at ./test.pl line 8.
  3. or download this
    my @k = keys(%mh) ;
splice( @k ...) ;