#!/usr/bin/perl 
use strict;
use warnings;  

my $bak_id;
my $acc_bal;

chomp($bak_id =<STDIN>);
chomp($acc_bal=<STDIN>);

SWITCH: {
    (!$bak_id or !$acc_bal) && do {
        print "Returning to Main Menu\n";
        return;    # or somesuch
    };
    
    ($acc_bal < 1.0 && $bak_id eq "BOTH") && do {
        print "condition 1\n";
        last SWITCH         
    };
    
    ($acc_bal > 1.0 && $bak_id eq "BOTH") && do {
        print "condition 2\n";
        last SWITCH
    };

    ($acc_bal < 1.0 && $bak_id =~ /^Cust[12]$/) && do {
        print "condition 3\n";
        last SWITCH
    };

    ($acc_bal > 1.0  && $bak_id =~ /^Cust[12]$/) && do {
        print "condition 4\n";
        # blah, blah, blah
        last SWITCH
    };

    print "Invalid entry\n";

}