function count = doBorders(piece, l, w)
global newCount

newRow = int8(zeros(1, w));
newColumn = int8(zeros(l, 1));

for i = 1:l
    if piece(i, 1)
        newPiece = [newColumn piece];
        newPiece(i, 1) = 1;
        tryPiece(newPiece);
    end
    if piece(i, w)
        newPiece = [piece newColumn];
        newPiece(i, w + 1) = 1;
        tryPiece(newPiece);
    end
end

for j = 1:w
    if piece(1, j)
        newPiece = [newRow; piece];
        newPiece(1, j) = 1;
        tryPiece(newPiece);
    end
    if piece(l, j)
        newPiece = [piece; newRow];
        newPiece(l + 1, j) = 1;
        tryPiece(newPiece);
    end
end

count = newCount;