use v6;

my $str = get();
chomp $str;
my @arr = $str.split('');

my $keep = 0;
my $count = 0;

for @arr -> $arr {
	if $arr eq '…' {
		$count++;
	} else {
		if $keep < $count {
			$keep = $count;
		}
		$count = 0;
	}
}
say $keep;
exit;