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my( $x, $y, $z ) = ( 1,2,3 );
my $lamb = do{
    my( $x, $y, $z ) = ( $x, $y, $z );
    lambda ( $x, $y, $z ) => sub { $x + $y }
}

my ( $x, $y, $z ) = ( 1, 2, 3 );
lambda ( 1, 2, 3 ) => sub { 1 + 2 }