Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Class | Operator | No. Built | Year Built | Cars per Set | Unit nos. |
| --- | --- | --- | --- | --- | --- |
| Class 377/1 | Southern | 64.0 | 2002–2003 | 4.0 | 377101-164 |
| Class 377/2 | Southern | 12.0 | 2003–2004 | 4.0 | 377201-206 377208-210 377213-215 |
| Class 377/2 | First Capital Connect | 3.0 | 2003–2004 | 4.0 | 377207 377211-212 |
| Class 377/3 | Southern | 28.0 | 2001–2002 | 3.0 | 377301-328 |
| Class 377/4 | Southern | 75.0 | 2004–2005 | 4.0 | 377401-475 |
| Class 377/5 | First Capital Connect | 23.0 | 2008–2009 | 4.0 | 377501-523 |
| Class 377/6 | Southern | 26.0 | 2012-2014 | 5.0 | 377601-626 |
| Class 377/7 | Southern | 8.0 | 2014 | 5.0 | 377701-708 |
Question:
What class has less than 12 numbers built operated by southern?
Answer:
Class 377/7