diff --git a/2015/01.py b/2015/01.py
new file mode 100644
index 0000000..617c37d
--- /dev/null
+++ b/2015/01.py
@@ -0,0 +1,25 @@
+# Fill Input
+
+input = ""
+
+try:
+	with open("01.txt", 'r', encoding='utf-8') as file:
+		input += file.read()
+except Exception as e:
+	print(f"An error occurred: {e}")
+
+# Result
+
+res1, res2 = 0, 0
+
+for i in range(len(input)):
+	match input[i]:
+		case '(':
+			res1 += 1
+		case ')':
+			res1 -= 1
+
+	if res1 < 0 and  res2 == 0:
+		res2 = i+1
+
+print(res1, res2)
diff --git a/2015/2.py b/2015/02.py
similarity index 76%
rename from 2015/2.py
rename to 2015/02.py
index 373b59c..7d928b0 100644
--- a/2015/2.py
+++ b/2015/02.py
@@ -1,17 +1,16 @@
-#!/usr/bin/env python3
-
 # Fill Input
+
 input = ""
 
 try:
-	with open("2.txt", 'r', encoding='utf-8') as file:
+	with open("02.txt", 'r', encoding='utf-8') as file:
 		input += file.read()
 except Exception as e:
 	print(f"An error occurred: {e}")
 
 # Result
-res1 = 0;
-res2 = 0;
+
+res1, res2 = 0, 0;
 for line in input.split('\n'):
 	if line == "":
 		break
diff --git a/2015/3.py b/2015/03.py
similarity index 89%
rename from 2015/3.py
rename to 2015/03.py
index a456300..80a54dd 100644
--- a/2015/3.py
+++ b/2015/03.py
@@ -1,19 +1,20 @@
-#!/usr/bin/env python3
-
 # Fill Input
+
 input = ""
 
 try:
-	with open("3.txt", 'r', encoding='utf-8') as file:
+	with open("03.txt", 'r', encoding='utf-8') as file:
 		input += file.read()
 except Exception as e:
 	print(f"An error occurred: {e}")
 
 # Convert Corrdenate to string
+
 def key_coord(coord):
 	return f"{coord[0]},{coord[1]}"
 
 # Result
+
 santas = 1 # or 2
 
 i=0
diff --git a/2015/4.py b/2015/04.py
similarity index 100%
rename from 2015/4.py
rename to 2015/04.py
diff --git a/2015/5.py b/2015/05.py
similarity index 86%
rename from 2015/5.py
rename to 2015/05.py
index a1e4820..7e39a02 100644
--- a/2015/5.py
+++ b/2015/05.py
@@ -1,21 +1,22 @@
-#!/usr/bin/env python3
-
 import re
 
 # Fill Input
+
 input = ""
 
 try:
-	with open("5.txt", 'r', encoding='utf-8') as file:
+	with open("05.txt", 'r', encoding='utf-8') as file:
 		input += file.read()
 except Exception as e:
 	print(f"An error occurred: {e}")
 
 # regex matching
+
 def match(pattern, string):
 	return re.search(pattern, string) != None
 
 # Convert Corrdenate to string
+
 res1, res2 = 0, 0
 
 for line in input.split("\n"):
diff --git a/2015/1.py b/2015/1.py
deleted file mode 100644
index d5e8c98..0000000
--- a/2015/1.py
+++ /dev/null
@@ -1,25 +0,0 @@
-#!/usr/bin/env python3
-
-# Fill Input
-input = ""
-
-try:
-	with open("1.txt", 'r', encoding='utf-8') as file:
-		input += file.read()
-except Exception as e:
-	print(f"An error occurred: {e}")
-
-# Part 1
-print(input.count("(") - input.count(")"))
-
-# Part 2
-res = 0
-for i in range(len(input)):
-	match input[i]:
-		case '(':
-			res += 1
-		case ')':
-			res -= 1
-	if res < 0:
-		print(i+1)
-		break