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

my $input = <STDIN>;

my @numbers = split /,/, $input;

my $total_number = $numbers[0] + $numbers[1] + $numbers[2];

my $length = @numbers;

my $average = $total_number / $length;

my $formated_average = sprintf("%.1f", $average);

print "合計点:$total_number\n";
print "平均点:$formated_average\n";