$ perl -wle " %foo = 1..4; print for @foo{qw# 1 3 #}; print $^V "
Scalar value @foo{qw# 1 3 #} better written as $foo{qw# 1 3 #} at -e line 1.
2
4
v5.12.2

$ perl -wle " %foo = 1..4; print for @foo{q#1#, q#3#}; print $^V "
2
4
v5.12.2