#include<bits/stdc++.h>
#define IOS ios::sync_with_stdio(false);cin.tie(0);cout.tie(0);
#define endl "\n"
#define x first
#define y second
//#define int long long
using namespace std;
typedef long long ll;
typedef pair<int, int> pii;
typedef pair<int, string> pis;
const int mod = 1e9 + 7;
const int N = 1e6+ 10;

int n, m, o[N], x, cnt;


inline void sovle()
{
	cin >> n;
	vector<int> o;
	for(int i = 1; i <= n; i ++)
	{
		int s = 0;
		char a;
		for(int j = 0; j < n; j ++)
		{
			cin >> a;
			if(a == '1') s = 0;
			else s ++;			
		}
		o.push_back(s); 
	}
	int sum = 0, x = n - 1;
	
	for(int i = 0; i < n; i ++)
	{
		if(o[i] < x)
		{
			int a;
			for(int j = i + 1; j < n; j ++)
			{
				if(o[j] >= x)
				{
					a = o[j];
					sum += j - i;
					o.erase(o.begin() + j);
					break;
				}
			}
			o.insert(o.begin() + i + 1, o[i]);
		}
		x --; 
	}
	cout << "Case #" << ++ cnt << ": " << sum << endl;
}

signed main(void)
{
	 
	IOS;
	int t = 1;
	cin >> t;
	while(t --) sovle();
	return 0;
}