--- New                --- Internally
¥hr                ==  $hr
¥hr{k1}            ==  $hr->{k1}  
¥hr{k1}=¥hr2       ==  $hr->{k1} = $hr2
keys ¥hr           ==  keys %$hr
keys ¥hr{k1}{k2}   ==  keys %{ $hr->{k1}{k2} }
print €ar[1]       ==  print $ar->[1]
print @€ar[1]      ==  print @{ $ar->[1] }