3 val urban_generate = 

     2 def urbanmain() = {

     4 """+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++.[-]++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++.[-]+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++.[-]"""

     3   import M5a._

     6 assert(generate("ABC".toList) == urban_generate)

     5   val urban_generate = 

     6     """+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++.[-]++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++.[-]+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++.[-]"""

     7 

     8   assert(generate("ABC".toList) == urban_generate)

     9 

    10 }