diff --git a/check_from_input_output.py b/check_from_input_output.py
new file mode 100644
index 0000000..ae24dd3
--- /dev/null
+++ b/check_from_input_output.py
@@ -0,0 +1,25 @@
+import sys
+
+fuzz = sys.argv[1]
+
+input = open(fuzz + "_input.txt", "r")
+output = open(fuzz + "_output.txt", "r")
+
+in_lines = input.readlines()
+out_lines = output.readlines()
+for i in range(0, len(in_lines)):
+    if not in_lines[i].startswith("#"):
+        print(">", in_lines[i], end="")
+    else:
+        print(in_lines[i], end="")
+    if out_lines[i].startswith("Error, "):
+        print("<e")
+    else:
+        print(out_lines[i], end="")
+
+for i in range(len(in_lines), len(out_lines)):
+    line = out_lines[i]
+    if line.startswith("Error, "):
+        print("<e")
+    else:
+        print(line, end="")