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#include <iostream>
#include <vector>
using namespace std;
int solve() {
int N, Q;
cin >> N;
vector<bool> white(N + 1);
for (int i = 1; i <= N; i++) {
char c;
cin >> c;
white[i] = c - '0';
}
vector<bool> press(N + 1);
cin >> Q;
for (int i = 0, b; i < Q; i++) {
cin >> b;
press[b] = press[b] ^ 1;
}
// Apply presses.
for (int i = 1; i <= N; i++) {
if (press[i]) {
for (int j = i; j <= N; j += i) {
white[j] = white[j] ^ 1;
}
}
}
// Convert to black greedily.
int num_presses = 0;
for (int i = 1; i <= N; i++) {
if (white[i]) {
num_presses++;
for (int j = i; j <= N; j += i) {
white[j] = white[j] ^ 1;
}
}
}
return num_presses;
}
int main() {
int T;
cin >> T;
for (int t = 1; t <= T; t++) {
cout << "Case #" << t << ": " << solve() << endl;
}
return 0;
}
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