use strict;
use warnings;
use utf8;
use Encode qw/encode decode decode_utf8 encode_utf8 from_to/;
use Encode::Guess qw/cp932 euc-jp utf8 7bit-jis/;

my $cmp_str = 'ｗ';
my $instr = '';
my $max_count = 0;
my %dat=();

$instr = decode('utf8', <STDIN>);

if( $instr ne '' ) {
	while ($instr ne '' ) {
		$instr =~ s/^(.*?)($cmp_str+)//;
		my $str = $1;
		my $str_n = $2;
		my $count = 0;
		$count++ while($str_n =~ m/$cmp_str/g);
		$max_count = $count if($max_count < $count);
		push(@{$dat{$count}}, $str);

	}
}

foreach my $line ( @{$dat{$max_count}} ) {
	next if( $line eq '' );
	print "$line\n";
}