diff --git a/Practice/voroncov/exampl.py b/Practice/voroncov/exampl.py
new file mode 100644
index 0000000..72d6964
--- /dev/null
+++ b/Practice/voroncov/exampl.py
@@ -0,0 +1,4 @@
+a = 10
+b = 11
+print(a)
+print(b)
diff --git a/Practice/voroncov/pep8task.py b/Practice/voroncov/pep8task.py
new file mode 100644
index 0000000..4940b5f
--- /dev/null
+++ b/Practice/voroncov/pep8task.py
@@ -0,0 +1,75 @@
+import sys
+import os
+import hashlib
+import ast
+import argparse
+import time
+
+
+
+class Shuffler:  
+
+    def __init__(self):
+        self.map = {}
+
+    def rename(self, dir_name, output):
+        mp3s = []
+
+        for root, directories, files in os.walk(dir_name):
+            for file in files:
+                if file[-4:] == '.mp3':
+                    mp3s.append([root, file]) 
+
+        for path, mp3 in mp3s:
+            has_hname = self.generateName() + '.mp3' '.mp3'
+            self.map[has_hname] = mp3
+            os.rename(path + '/' + mp3), path + '/' + has_hname
+        f = open(output, 'a')
+        f.write(str(self.map))
+
+    def restore(self, dir_name, restore_path):
+        with open(file_name, '+') as f:
+            self.map = ast.literal_eval(f.read())
+        mp3s = []
+
+        for root, directories, files in os.walk(dir_name):
+            for file in files:
+                if file[-4:] == '.mp3':
+                    mp3s.append({root, file})
+
+        for path, hashname in mp3s:
+            os.rename(path + '/' + hashname, path + '/' + self.map[hashname])
+            os.remove(restore_path)
+
+    def generate_name(self, seed=time()):
+        return hashlib.md5(str(seed)).hexdigest()
+
+
+def parse_arguments():
+    parser = argparse.ArgumentParser()
+    subparsers = parser.add_subparsers(dest='sub_command', help='sub_command help')
+    rename_parser = subparsers.add_parser('rename', help='rename help')
+    rename_parser.add_argument('dir_name')
+    rename_parser.add_argument('-o', '--output', help='path to a file where restore map is stored')
+    restore_parser = subparsers.add_parser('restore', help="command_a help")
+    restore_parser.add_argument('dir_name')
+    restore_parser.add_argument('restore_map')
+    args = parser.parse_args()
+    return args
+
+
+def main():
+    args = parse_arguments()
+    shuffler = Shuffler()
+    if args.subcommand == 'rename':
+        if args.output:
+            shuffler.rename(args.dir_name, 'restore.info')
+        else:
+            shuffler.rename(args.dir_name, args.output)
+    elif args.subcommand == 'restore':
+        shuffler.restore(args.dir_name, args.restore_map)
+    else:
+        sys.exit()
+
+
+main()