$hash{'name'} = 1;
$hash{0} = 2;
$hash{1} = 3;
$hash{'1'} = 4;

$\=$/;    # Adds "\n" to every print.
$,=", ";  # Seperate printed fields with commas.

print(keys(%hash));    # prints: name, 0, 1 (in random order)
print($hash{'name'});  # prints: 1
print($hash{0});       # prints: 2
print($hash{1});       # prints: 4
print($hash{'1'});     # prints: 4