#include <iostream>
using namespace std;

int rs, cs;

void setcell(int &board, int r, int c) {
    board |= 1<<(r * cs + c);
}

int getcell(int board, int r, int c) {
    if (r < 0) r += rs;
    if (c < 0) c += cs;
    if (r >= rs) r -= rs;
    if (c >= cs) c -= cs;
    return (board & (1<<(r*cs+c))) ? 1 : 0;
}

int nneighbors(int board, int r, int c) {
    return
	getcell(board, r - 1, c - 1) +
	getcell(board, r - 1, c + 0) +
	getcell(board, r - 1, c + 1) +
	getcell(board, r + 0, c + 1) +
	getcell(board, r + 1, c + 1) +
	getcell(board, r + 1, c + 0) +
	getcell(board, r + 1, c - 1) +
	getcell(board, r + 0, c - 1);
}

int evolve(int board) {
    int out = 0;
    for (int r = 0; r < rs; ++r) {
	for (int c = 0; c < cs; ++c) {
	    int cell = getcell(board, r, c);
	    int near = nneighbors(board, r, c);
	    if (cell) {
		if (near == 2 || near == 3) setcell(out, r, c);
	    }
	    else {
		if (near == 3) setcell(out, r, c);
	    }
	}
    }
    return out;
}

int main(void) {
    for (int casei = 1; ; ++casei) {
	cin >> rs >> cs;
	if (rs == 0) break;
	
	int target = 0;
	
	int n; cin >> n;
	while (n--) {
	    int r, c; cin >> r >> c;
	    setcell(target, r, c);
	}

	int ancestors = 0;
	for (int anc = 0; anc < (1<<(cs*rs)); ++anc) {
	    if (evolve(anc) == target) ++ancestors;
	}
	cout << "Case " << casei << ": ";
	if (ancestors == 0) cout << "Garden of Eden.";
	else cout << ancestors << " possible ancestors.";
	cout << endl;
    }
    
    return 0;
}