The idea of MBPR is that one or more memory elements be considered to be the ``Answer Location'' in memory. After the program tree has been evaluated the value of this memory location or locations is taken to be the program's response. For this paper we will take indexed memory [Teller1994] as our memory model and use cell 0 of memory to be the answer location. Thus, in this version of MBPR, the tree is executed and then Memory[0] is taken to be the program's response.