diff --git a/ALU_parallel_8b/ALU_parallel_8b.bdf b/ALU_parallel_8b/ALU_parallel_8b.bdf
index bd4c11f..4d050cf 100644
--- a/ALU_parallel_8b/ALU_parallel_8b.bdf
+++ b/ALU_parallel_8b/ALU_parallel_8b.bdf
@@ -516,38 +516,6 @@ applicable agreement for further details.
 		(line (pt 78 12)(pt 82 8)(line_width 1))
 	)
 )
-(pin
-	(output)
-	(rect 768 344 944 360)
-	(text "OUTPUT" (rect 1 0 39 10)(font "Arial" (font_size 6)))
-	(text "PN" (rect 90 0 105 12)(font "Arial" ))
-	(pt 0 8)
-	(drawing
-		(line (pt 0 8)(pt 52 8)(line_width 1))
-		(line (pt 52 4)(pt 78 4)(line_width 1))
-		(line (pt 52 12)(pt 78 12)(line_width 1))
-		(line (pt 52 12)(pt 52 4)(line_width 1))
-		(line (pt 78 4)(pt 82 8)(line_width 1))
-		(line (pt 82 8)(pt 78 12)(line_width 1))
-		(line (pt 78 12)(pt 82 8)(line_width 1))
-	)
-)
-(pin
-	(output)
-	(rect 768 360 944 376)
-	(text "OUTPUT" (rect 1 0 39 10)(font "Arial" (font_size 6)))
-	(text "GN" (rect 90 0 106 12)(font "Arial" ))
-	(pt 0 8)
-	(drawing
-		(line (pt 0 8)(pt 52 8)(line_width 1))
-		(line (pt 52 4)(pt 78 4)(line_width 1))
-		(line (pt 52 12)(pt 78 12)(line_width 1))
-		(line (pt 52 12)(pt 52 4)(line_width 1))
-		(line (pt 78 4)(pt 82 8)(line_width 1))
-		(line (pt 82 8)(pt 78 12)(line_width 1))
-		(line (pt 78 12)(pt 82 8)(line_width 1))
-	)
-)
 (symbol
 	(rect 408 80 528 336)
 	(text "74181" (rect 41 0 82 16)(font "Arial" (font_size 10)))
@@ -1302,14 +1270,6 @@ applicable agreement for further details.
 	(pt 608 320)
 	(pt 624 320)
 )
-(connector
-	(pt 728 352)
-	(pt 768 352)
-)
-(connector
-	(pt 728 368)
-	(pt 768 368)
-)
 (connector
 	(pt 544 280)
 	(pt 744 280)
diff --git a/ALU_parallel_8b/adder_parallel_8b.qsf b/ALU_parallel_8b/adder_parallel_8b.qsf
index 4235ebf..fb75b66 100644
--- a/ALU_parallel_8b/adder_parallel_8b.qsf
+++ b/ALU_parallel_8b/adder_parallel_8b.qsf
@@ -42,4 +42,6 @@ set_global_assignment -name TOP_LEVEL_ENTITY ALU_parallel_8b
 set_global_assignment -name ORIGINAL_QUARTUS_VERSION "9.0 SP2"
 set_global_assignment -name PROJECT_CREATION_TIME_DATE "21:45:13  MARCH 09, 2022"
 set_global_assignment -name LAST_QUARTUS_VERSION "9.0 SP2"
-set_global_assignment -name BDF_FILE ALU_parallel_8b.bdf
\ No newline at end of file
+set_global_assignment -name BDF_FILE ALU_parallel_8b.bdf
+set_global_assignment -name USE_CONFIGURATION_DEVICE ON
+set_global_assignment -name RESERVE_ALL_UNUSED_PINS "AS INPUT TRI-STATED"
\ No newline at end of file