use warnings;
use Data::Dumper;
my @array;

@arr = (
            [
                undef,
                undef,
                undef,
                undef,
                ['S', 'M', 'R', 'B'],
            ]
        );

print Dumper \@arr;

my ($VAR1,$VAR2,$VAR3,$VAR4) = @{$arr[0][4]}; 
print "Var1: $VAR1\tVar2: $VAR2\tVar3: $VAR3\tVar4: $VAR4\n";
Testing($arr[0][4]);

sub Testing  {
	my ($VAR5,$VAR6,$VAR7,$VAR8) = @{$_[0]}; 
	print "Var5: $VAR5\tVar6: $VAR6\tVar7: $VAR7\tVar8: $VAR8\n";
}