sub two_hard { @_ = @_[0,1]; @_ }
sub two_easy {      @_[0,1]     }

print "two easy: " . two_easy( 'one', 'two' ) . "\n";
print "two hard: " . two_hard( 'one', 'two' ) . "\n";

##</code><code>##

two easy: two
two hard: 2