#!/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;