diff --git a/flap/questions/retrolixToX86_64/02.retrolix b/flap/questions/retrolixToX86_64/02.retrolix
index 04134a4..5157e5d 100644
--- a/flap/questions/retrolixToX86_64/02.retrolix
+++ b/flap/questions/retrolixToX86_64/02.retrolix
@@ -2,25 +2,23 @@ globals (x, y, z, k)
   x <- copy 6;
   %rdi <- copy x;
   print_int();
-  %rdi <- copy "\n";
+  %rdi <- copy " ";
   print_string();
 
   y <- copy 7;
   %rdi <- copy y;
   print_int();
-  %rdi <- copy "\n";
+  %rdi <- copy " ";
   print_string();
 
   z <- mul y, x;
   %rdi <- copy z;
   print_int();
-  %rdi <- copy "\n";
+  %rdi <- copy " ";
   print_string();
 
   k <- sub z, x;
   %rdi <- copy k;
   print_int();
-  %rdi <- copy "\n";
-  print_string();
 
 end
diff --git a/flap/questions/retrolixToX86_64/03.retrolix b/flap/questions/retrolixToX86_64/03.retrolix
index 0d33ac1..82d8927 100644
--- a/flap/questions/retrolixToX86_64/03.retrolix
+++ b/flap/questions/retrolixToX86_64/03.retrolix
@@ -13,7 +13,4 @@ globals (res)
   res <- copy %rax;
   %rdi <- copy res;
   print_int();
-
-  %rdi <- copy "\n";
-  print_string();
 end
diff --git a/flap/questions/retrolixToX86_64/04.retrolix b/flap/questions/retrolixToX86_64/04.retrolix
index e69de29..de73b80 100644
--- a/flap/questions/retrolixToX86_64/04.retrolix
+++ b/flap/questions/retrolixToX86_64/04.retrolix
@@ -0,0 +1,4 @@
+globals ()
+  %rdi <- copy 42;
+  observe_int();
+end
diff --git a/flap/questions/retrolixToX86_64/Makefile b/flap/questions/retrolixToX86_64/Makefile
index de64643..9e23610 100644
--- a/flap/questions/retrolixToX86_64/Makefile
+++ b/flap/questions/retrolixToX86_64/Makefile
@@ -3,7 +3,7 @@ TARGET = retrolix
 
 main:
 	@for f in $(wildcard *.$(TARGET)); do \
-		printf "%s:\n" $$f; \
+		printf "%s: " $$f; \
 		./$(FLAP) -s $(TARGET) -d true -r true $$f; \
 		printf "\n"; \
 	done