diff --git a/Calculator.mp4 b/Calculator.mp4
new file mode 100644
index 0000000..633fe27
Binary files /dev/null and b/Calculator.mp4 differ
diff --git a/Problem Statement 1/README.md b/Problem Statement 1/README.md
deleted file mode 100644
index 6aaeab6..0000000
--- a/Problem Statement 1/README.md	
+++ /dev/null
@@ -1,10 +0,0 @@
-# Problem Statement-1.
-
-
-***
-### Make a desktop assistant using Python as its backend
-
-
-
-***
-
diff --git a/Problem Statement 2/README.md b/Problem Statement 2/README.md
deleted file mode 100644
index baf2489..0000000
--- a/Problem Statement 2/README.md	
+++ /dev/null
@@ -1,10 +0,0 @@
-# Problem Statement-2.
-
-
-***
-### Make a Simple Image Editing app 
-
-
-
-***
-
diff --git a/Problem Statement 3/calculator.py b/Problem Statement 3/calculator.py
new file mode 100644
index 0000000..5ab572c
--- /dev/null
+++ b/Problem Statement 3/calculator.py	
@@ -0,0 +1,23 @@
+from tkinter import *
+
+def btnClick(number):
+    global operator
+    operator=operator+str(number)
+    strrvar.set(operator)
+
+def btnClear():
+    global operator
+    operator=''
+    strvar.set(operator)
+
+def result():
+    global opearator
+    res=str(eval(operator))
+    strvar.set(res)
+
+root=Tk()
+root.title("Calculator")
+operator=''
+strvar=StringVar()
+
+ent=Entry(root,width=50, bd=5, font=
diff --git a/Problem Statement 3/p1.py b/Problem Statement 3/p1.py
new file mode 100644
index 0000000..dfbea32
--- /dev/null
+++ b/Problem Statement 3/p1.py	
@@ -0,0 +1,3 @@
+import tkinter
+wind1=tkinter.Tk()
+wind1.title("New title of window")
diff --git a/Problem Statement 3/p2.py b/Problem Statement 3/p2.py
new file mode 100644
index 0000000..7f627ba
--- /dev/null
+++ b/Problem Statement 3/p2.py	
@@ -0,0 +1,4 @@
+import tkinter
+root=tkinter.Tk()
+tkinter.Button(root, text='Press Me', command=root.quit).pack()
+root.mainloop()
diff --git a/Problem Statement 3/p3.py b/Problem Statement 3/p3.py
new file mode 100644
index 0000000..fb6a47e
--- /dev/null
+++ b/Problem Statement 3/p3.py	
@@ -0,0 +1,12 @@
+import tkinter
+
+def wquit():
+    print('Hello, getting out of here')
+
+root=tkinter.Tk()
+widget1=tkinter.Label(root, text='Hello there')
+widget1.pack()
+widget2=tkinter.Button(root, text='Click to quit', command=wquit)
+widget2.pack()
+
+root.mainloop()
diff --git a/Problem Statement 3/run.py b/Problem Statement 3/run.py
new file mode 100644
index 0000000..cf46aae
--- /dev/null
+++ b/Problem Statement 3/run.py	
@@ -0,0 +1,81 @@
+from tkinter import *
+
+def btnClick(numbers):
+    global operator
+    operator= operator + str(numbers)
+    text_Input.set(operator)
+
+def btnClear():
+    global operator
+    operator=""
+    text_Input.set("")
+
+def btnEquals():
+    global operator
+    sumup= str(eval(operator))
+    text_Input.set(sumup)
+    operator=""
+    
+cal=Tk()
+cal.title("Calculator")
+operator=""
+text_Input=StringVar()
+txtDisplay= Entry(cal, font=('arial', 20, 'bold'), textvariable= text_Input, bd=30, insertwidth= 3, bg= "#FFFFFF", justify="right").grid(columnspan=4)
+
+##################################################################################################################################################
+button7= Button(cal, padx=16, pady=16, bd=8, fg="black", font=('arial', 20, 'bold'), text='7', command= lambda:btnClick(7))
+button7.grid(row=1, column=0)
+
+button8= Button(cal, padx=16, pady=16, bd=8, fg="black", font=('arial', 20, 'bold'), text='8', command= lambda:btnClick(8))
+button8.grid(row=1, column=1)
+
+button9= Button(cal, padx=16, pady=16, bd=8, fg="black", font=('arial', 20, 'bold'), text='9', command= lambda:btnClick(9))
+button9.grid(row=1, column=2)
+
+buttonAdd= Button(cal, padx=16, pady=16, bd=8, fg="black", font=('arial', 20 , 'bold'), text='+', command= lambda:btnClick("+"))
+buttonAdd.grid(row=1, column=3)
+
+##################################################################################################################################################
+button4= Button(cal, padx=16, pady=16, bd=8, fg="black", font=('arial', 20, 'bold'), text='4', command= lambda:btnClick(4))
+button4.grid(row=2, column=0)
+
+button5= Button(cal, padx=16, pady=16, bd=8, fg="black", font=('arial', 20, 'bold'), text='5', command= lambda:btnClick(5))
+button5.grid(row=2, column=1)
+
+button6= Button(cal, padx=16, pady=16, bd=8, fg="black", font=('arial', 20 , 'bold'), text='6 ', command= lambda:btnClick(6))
+button6.grid(row=2, column=2)
+
+buttonSub= Button(cal, padx=16, pady=16, bd=8, fg="black", font=('arial', 20, 'bold'), text='-', command= lambda:btnClick("-"))
+buttonSub.grid(row=2, column=3)
+
+##################################################################################################################################################
+button1= Button(cal, padx=16, pady=16, bd=8, fg="black", font=('arial', 20, 'bold'), text='1', command= lambda:btnClick(1))
+button1.grid(row=3, column=0)
+
+button2= Button(cal, padx=16, pady=16, bd=8, fg="black", font=('arial', 20, 'bold'), text='2', command= lambda:btnClick(2))
+button2.grid(row=3, column=1)
+
+button3= Button(cal, padx=16, pady=16, bd=8, fg="black", font=('arial', 20, 'bold'), text='3', command= lambda:btnClick(3))
+button3.grid(row=3, column=2)
+
+buttonMul= Button(cal, padx=16, pady=16, bd=8, fg="black", font=('arial', 20 , 'bold'), text='X', command= lambda:btnClick("*"))
+buttonMul.grid(row=3, column=3)
+
+##################################################################################################################################################
+button0= Button(cal, padx=16, pady=16, bd=8, fg="black", font=('arial', 20, 'bold'), text='0', command= lambda:btnClick(0))
+button0.grid(row=4, column=0)
+
+buttonClr= Button(cal, padx=16, pady=16, bd=8, fg="black", font=('arial', 20 , 'bold'), text='C', command= lambda:btnClear())
+buttonClr.grid(row=4, column=1)
+
+buttonequal= Button(cal, padx=16, pady=16, bd=8, fg="black", font=('arial', 20, 'bold'), text='=', command= lambda:btnEquals())
+buttonequal.grid(row=4, column=2)
+
+buttonDiv= Button(cal, padx=16, pady=16, bd=8, fg="black", font=('arial', 20, 'bold'), text='/', command= lambda:btnClick("/"))
+buttonDiv.grid(row=4, column=3)
+
+
+
+
+
+cal.mainloop()