#include <stdio.h>

int main() {
	for (int i = 0; i < 30; i++) {
		char s[11];
		scanf("%s", s);
		bool prev = true;
		int res = 0;
		for (int j = 0; j < 10; j++) {
			bool cur = s[j] == '|';
			if (!prev && !cur) break;
			res += cur;
			prev = cur;
		}
		printf("%d\n", res);
	}
	return 0;
}