$a="ABC";
$b=length($a);
print "$b\n";
for($i=0;$i<$b;$i++){
$a=~s/(\d+)(.)/$2 x $1/ge;
}
print "$a\n";
my %value = (
    A => 2.74,
    B => 2.64,
    C => 2.5,
);

my %factor = (
    A => 50/100,
    B => 55/100,
    C => 60/100,
);

my @letters = split //, $a;
my $result = 1;
my $temp=0;
for my $letter (@letters) {
   $result *= $value{ $letter };
#print "$result\n";
};
my %seen;
my @uniqed = grep !$seen{$_}++, @letters;
for my $letter (@uniqed) {
   $result *= $factor{ $letter };
#print "$result\n";
};
print $result;