UVa 12279 - Emoogle Balance

// UVa 12279 - Emoogle Balance

#include <iostream>
using namespace std;

int main() {

	int caseNumber = 0;
	int n;
	while (cin >> n && n) {
		caseNumber++;
		int balance = 0;
		for (int i = 0; i < n; i++) {
			int number;
			cin >> number;
			if (number)
				balance++;
			else
				balance--;
		}
		cout << "Case " << caseNumber << ": " << balance << endl;
	}
	return 0;
}