+++++++++++++++++++++++
+++++++++++++++++++++++++++
++++++++++++++++++++
++++++++++++++++++++++++++++
++++++++++++++++++++++++
+++++++++++++++++++
+++++++++++++++++++++++++
++++++++++++++++++++++
+++++++++++++++++++++++++++++++
.....+++++++++++++++.............c3
+++++++++++++++++++++++++++++++++++++
+++++++++++++++++++++++++++++
++++++++++++++++++++++++++++++++++++++
+++++++++++++++++++++++++++++++++
Dãn cách tên bằng dấu phẩy(,).