\psset{nodesep=1mm,levelsep=4cm,treesep=0.7cm}
\pstree[treemode=R]{\TC}{%
		\pstree{\TR{$P$} \naput{0.5}}{% 
				\pstree{\TR{$P$} \naput{0.5}}{% 
						\pstree{\TR{$P$} \naput{0.5}}{% 
								\pstree{\TR{$P$} \naput{0.5}}{% 
										\TR{$P$} \naput{0.5}
										\Tcircle{$I$} \nbput{0.5}
								}
								\pstree{\TR{$I$} \naput{0.5}}{% 
										\Tcircle{$P$} \naput{0.5}
										\TR{$I$} \nbput{0.5}
								}
						}
						\pstree{\TR{$I$} \naput{0.5}}{% 
								\pstree{\TR{$P$} \naput{0.5}}{% 
										\Tcircle{$P$} \naput{0.5}
										\TR{$I$} \nbput{0.5}
								}
								\pstree{\TR{$I$} \naput{0.5}}{% 
										\TR{$P$} \naput{0.5}
										\TR{$I$} \nbput{0.5}
								}
						}
				}
				\pstree{\TR{$I$} \naput{0.5}}{% 
						\pstree{\TR{$P$} \naput{0.5}}{% 
								\pstree{\TR{$P$} \naput{0.5}}{% 
										\Tcircle{$P$} \naput{0.5}
										\TR{$I$} \nbput{0.5}
								}
								\pstree{\TR{$I$} \naput{0.5}}{% 
										\TR{$P$} \naput{0.5}
										\TR{$I$} \nbput{0.5}
								}
						}
						\pstree{\TR{$I$} \naput{0.5}}{% 
								\pstree{\TR{$P$} \naput{0.5}}{% 
										\TR{$P$} \naput{0.5}
										\TR{$I$} \nbput{0.5}
								}
								\pstree{\TR{$I$} \naput{0.5}}{% 
										\TR{$P$} \naput{0.5}
										\TR{$I$} \nbput{0.5}
								}
						}
				}
		}
		\pstree{\TR{$I$} \naput{0.5}}{% 
				\pstree{\TR{$P$} \naput{0.5}}{% 
						\pstree{\TR{$P$} \naput{0.5}}{% 
								\pstree{\TR{$P$} \naput{0.5}}{% 
										\Tcircle{$P$} \naput{0.5}
										\TR{$I$} \nbput{0.5}
								}
								\pstree{\TR{$I$} \naput{0.5}}{% 
										\TR{$P$} \naput{0.5}
										\TR{$I$} \nbput{0.5}
								}
						}
						\pstree{\TR{$I$} \naput{0.5}}{% 
								\pstree{\TR{$P$} \naput{0.5}}{% 
										\TR{$P$} \naput{0.5}
										\TR{$I$} \nbput{0.5}
								}
								\pstree{\TR{$I$} \naput{0.5}}{% 
										\TR{$P$} \naput{0.5}
										\TR{$I$} \nbput{0.5}
								}
						}
				}
				\pstree{\TR{$I$} \naput{0.5}}{% 
						\pstree{\TR{$P$} \naput{0.5}}{% 
								\pstree{\TR{$P$} \naput{0.5}}{% 
										\TR{$P$} \naput{0.5}
										\TR{$I$} \nbput{0.5}
								}
								\pstree{\TR{$I$} \naput{0.5}}{% 
										\TR{$P$} \naput{0.5}
										\TR{$I$} \nbput{0.5}
								}
						}
						\pstree{\TR{$I$} \naput{0.5}}{% 
								\pstree{\TR{$P$} \naput{0.5}}{% 
										\TR{$P$} \naput{0.5}
										\TR{$I$} \nbput{0.5}
								}
								\pstree{\TR{$I$} \naput{0.5}}{% 
										\TR{$P$} \naput{0.5}
										\TR{$I$} \nbput{0.5}
								}
						}
				}
		}
     }
