# use strict;
# use warnings;

chomp(my $S = <>);
my $n = 1;
my $l = length($S);
if ($l > 3) {
    $S =~ /^(c+)/;
    my $c = length($1);
    my $w = $l - $c;
    $n = (sort({$a <=> $b} ($c - 1, $w)))[0]
}
print($n, "\n");