#include <iostream>
#include <string>

#define min(a, b) ((a) < (b) ? (a) : (b))

using namespace std;

int main(int argc, const char *argv[])
{
	string S;
	cin >> S;

	int cnt		 = 0;
	size_t index = S.find("ccw");
	if (index == -1) {
	}
	else {
		cnt = min(index, S.size() - 3 - index) + 1;
	}
	cout << cnt << endl;
	return 0;
}