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#!/usr/bin/env perl
use strict;
use warnings;
use 5.016;
use List::Util 'reduce';
our ($a, $b);
my %map = qw(
UUU F CUU L AUU I GUU V
UUC F CUC L AUC I GUC V
UUA L CUA L AUA I GUA V
UUG L CUG L AUG M GUG V
UCU S CCU P ACU T GCU A
UCC S CCC P ACC T GCC A
UCA S CCA P ACA T GCA A
UCG S CCG P ACG T GCG A
UAU Y CAU H AAU N GAU D
UAC Y CAC H AAC N GAC D
UAA Stop CAA Q AAA K GAA E
UAG Stop CAG Q AAG K GAG E
UGU C CGU R AGU S GGU G
UGC C CGC R AGC S GGC G
UGA Stop CGA R AGA R GGA G
UGG W CGG R AGG R GGG G
);
my %freq;
for my $codon (keys %map) {
$freq{$map{$codon}}++;
}
chomp(my $input = <>);
say $freq{Stop} * reduce { $a * $b } map { $freq{$_} } split '', $input;
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