use strict;
use warnings;
use Time::Piece;
use Time::Seconds;

my $t = Time::Piece->strptime( '2015-01-01', '%Y-%m-%d' );

my @calendar = ();
my $count = 0;

# 2015年のカレンダー作成
while (1) {
    push @calendar, $t->strftime('%m%d');
    last if ( $t->ymd eq '2015-12-31' );
    $t = $t + ONE_DAY;
}

for my $date (@calendar){
    my $month = substr($date,0,2);
    my $date_ten = substr($date,2,1);
    my $date_one = substr($date,3,1);

    if ($month == ($date_ten + $date_one) ){
        print $date , "\n";
        $count++;
    }
}

print $count , "\n"