diff --git a/C/.gitignore b/C/.gitignore
index d6b7ef3..f935021 100644
--- a/C/.gitignore
+++ b/C/.gitignore
@@ -1,2 +1 @@
-*
 !.gitignore
diff --git a/C/ootpatang.c b/C/ootpatang.c
new file mode 100644
index 0000000..2e3e996
Binary files /dev/null and b/C/ootpatang.c differ
diff --git a/Python/.gitignore b/Python/.gitignore
deleted file mode 100644
index d6b7ef3..0000000
--- a/Python/.gitignore
+++ /dev/null
@@ -1,2 +0,0 @@
-*
-!.gitignore
diff --git a/Python/.idea/Python.iml b/Python/.idea/Python.iml
new file mode 100644
index 0000000..8dc09e5
--- /dev/null
+++ b/Python/.idea/Python.iml
@@ -0,0 +1,11 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="PYTHON_MODULE" version="4">
+  <component name="NewModuleRootManager">
+    <content url="file://$MODULE_DIR$" />
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+  <component name="TestRunnerService">
+    <option name="PROJECT_TEST_RUNNER" value="pytest" />
+  </component>
+</module>
\ No newline at end of file
diff --git a/Python/.idea/inspectionProfiles/profiles_settings.xml b/Python/.idea/inspectionProfiles/profiles_settings.xml
new file mode 100644
index 0000000..105ce2d
--- /dev/null
+++ b/Python/.idea/inspectionProfiles/profiles_settings.xml
@@ -0,0 +1,6 @@
+<component name="InspectionProjectProfileManager">
+  <settings>
+    <option name="USE_PROJECT_PROFILE" value="false" />
+    <version value="1.0" />
+  </settings>
+</component>
\ No newline at end of file
diff --git a/Python/.idea/misc.xml b/Python/.idea/misc.xml
new file mode 100644
index 0000000..91eaa2d
--- /dev/null
+++ b/Python/.idea/misc.xml
@@ -0,0 +1,4 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectRootManager" version="2" project-jdk-name="Python 3.7 (Python)" project-jdk-type="Python SDK" />
+</project>
\ No newline at end of file
diff --git a/Python/.idea/modules.xml b/Python/.idea/modules.xml
new file mode 100644
index 0000000..3097039
--- /dev/null
+++ b/Python/.idea/modules.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/Python.iml" filepath="$PROJECT_DIR$/.idea/Python.iml" />
+    </modules>
+  </component>
+</project>
\ No newline at end of file
diff --git a/Python/.idea/vcs.xml b/Python/.idea/vcs.xml
new file mode 100644
index 0000000..6c0b863
--- /dev/null
+++ b/Python/.idea/vcs.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$/.." vcs="Git" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/Python/.idea/workspace.xml b/Python/.idea/workspace.xml
new file mode 100644
index 0000000..2e2bb13
--- /dev/null
+++ b/Python/.idea/workspace.xml
@@ -0,0 +1,68 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ChangeListManager">
+    <list default="true" id="367f2f91-73cd-42c6-af2b-caaf70d71ec4" name="Default Changelist" comment="" />
+    <option name="SHOW_DIALOG" value="false" />
+    <option name="HIGHLIGHT_CONFLICTS" value="true" />
+    <option name="HIGHLIGHT_NON_ACTIVE_CHANGELIST" value="false" />
+    <option name="LAST_RESOLUTION" value="IGNORE" />
+  </component>
+  <component name="FileTemplateManagerImpl">
+    <option name="RECENT_TEMPLATES">
+      <list>
+        <option value="Python Script" />
+      </list>
+    </option>
+  </component>
+  <component name="Git.Settings">
+    <option name="RECENT_GIT_ROOT_PATH" value="$PROJECT_DIR$/.." />
+  </component>
+  <component name="ProjectId" id="1j0g1ciLEAk9CShuzjwBelhukOp" />
+  <component name="ProjectLevelVcsManager" settingsEditedManually="true" />
+  <component name="ProjectViewState">
+    <option name="hideEmptyMiddlePackages" value="true" />
+    <option name="showLibraryContents" value="true" />
+  </component>
+  <component name="PropertiesComponent">
+    <property name="RunOnceActivity.OpenProjectViewOnStart" value="true" />
+    <property name="RunOnceActivity.ShowReadmeOnStart" value="true" />
+  </component>
+  <component name="RunManager">
+    <configuration name="captcha" type="PythonConfigurationType" factoryName="Python" temporary="true" nameIsGenerated="true">
+      <module name="Python" />
+      <option name="INTERPRETER_OPTIONS" value="" />
+      <option name="PARENT_ENVS" value="true" />
+      <option name="SDK_HOME" value="" />
+      <option name="WORKING_DIRECTORY" value="$PROJECT_DIR$" />
+      <option name="IS_MODULE_SDK" value="true" />
+      <option name="ADD_CONTENT_ROOTS" value="true" />
+      <option name="ADD_SOURCE_ROOTS" value="true" />
+      <option name="SCRIPT_NAME" value="$PROJECT_DIR$/captcha.py" />
+      <option name="PARAMETERS" value="" />
+      <option name="SHOW_COMMAND_LINE" value="true" />
+      <option name="EMULATE_TERMINAL" value="false" />
+      <option name="MODULE_MODE" value="false" />
+      <option name="REDIRECT_INPUT" value="false" />
+      <option name="INPUT_FILE" value="" />
+      <method v="2" />
+    </configuration>
+    <recent_temporary>
+      <list>
+        <item itemvalue="Python.captcha" />
+      </list>
+    </recent_temporary>
+  </component>
+  <component name="SvnConfiguration">
+    <configuration />
+  </component>
+  <component name="TaskManager">
+    <task active="true" id="Default" summary="Default task">
+      <changelist id="367f2f91-73cd-42c6-af2b-caaf70d71ec4" name="Default Changelist" comment="" />
+      <created>1602946208978</created>
+      <option name="number" value="Default" />
+      <option name="presentableId" value="Default" />
+      <updated>1602946208978</updated>
+    </task>
+    <servers />
+  </component>
+</project>
\ No newline at end of file
diff --git a/Python/captcha.py b/Python/captcha.py
new file mode 100644
index 0000000..7b9ec84
--- /dev/null
+++ b/Python/captcha.py
@@ -0,0 +1,27 @@
+import random
+from tkinter import *
+from tkinter import messagebox
+
+text = 'abcdefghijklmnopqrstuvwxyz0123456789'
+window = Tk()
+window.title("Captcha App")
+window.geometry("300x100")   #You can set the window according to your use
+captcha = StringVar()
+user_input = StringVar()
+
+def set_captcha():
+    s = random.choices(text, k = 6)  #value of k decides the length of captcha
+    captcha.set(''.join(s))
+
+def check():
+    if captcha.get() == user_input.get():
+        messagebox.showinfo("Success", "Correct")
+    else:
+        messagebox.showinfo("Error", "Incorrect")
+    set_captcha()
+
+Label(window, textvariable = captcha, font = "Arial 16 bold").pack()
+Entry(window, textvariable = user_input, font = "Arial 16 bold").pack(ipady = 5)
+Button(window, command = check, text = 'Check', font = "Arial 10").pack() #you can change the font of title, captcha given and user input
+set_captcha()
+window.mainloop()
\ No newline at end of file