Can someone help me change the loop below to not exit if 1, 2 or 3 is typed? I'd like it to ask the question "Please type in 1, 2 or 3 and click enter" for each time they input something not expected. So instead of typing in a "5" or an "a" and having the program stop, I'd like it to loop over and over again until they type in 1, 2 or a 3. 
chomp (my $choice = <STDIN>);

if ($choice == 1)
{
&hash1;
}
elsif ($choice == 2)
{
&hash2;
}
elsif ($choice == 3)
{
&hash3;
}
else
{
print "ERROR: Please type in either 1, 2 or 3.";
print "\nYou must restart the program";
exit;
}

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In reply to simple loop by Anonymous Monk

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