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 = '…';
my $instr = '';
my $max_count = 0;

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

if( $instr ne '' ) {
	while ($instr =~ m/($cmp_str+)/g ) {
		my $str = $1;
		my $count = 0;
		$count++ while($str =~ m/$cmp_str/g);
		$max_count = $count if($max_count < $count);
	}
}

print "$max_count";