diff --git a/Dice_Percentage.py b/Dice_Percentage.py
new file mode 100644
index 0000000..88ec547
--- /dev/null
+++ b/Dice_Percentage.py
@@ -0,0 +1,9 @@
+import random
+dice = [0, 0, 0, 0, 0, 0]
+y= int(input("which number's percentage:"))
+for i in range(5000):
+    x = random.randrange(1, 7)
+    dice[x-1]+=1 # counting numbers
+percentage= dice[y-1]/5000*100 # finding the percentage of number
+print("Percentage of throws of value ", y, "=", percentage, "%" )
+
diff --git a/Password.py b/Password.py
new file mode 100644
index 0000000..c6903ba
--- /dev/null
+++ b/Password.py
@@ -0,0 +1,23 @@
+import re
+password= input("Input your password: ")
+val = True
+while True:  
+    if (len(password)<6 or len(password)>12): #this is password rule
+        raise ValueError("Not a Valid Password") # if there is an error,it will show error message
+        break
+    elif not re.search("[a-z]",password):  #this is password rule
+        raise ValueError("Not a Valid Password")
+        break
+    elif not re.search("[0-9]",password):  #this is password rule
+        raise ValueError("Not a Valid Password")
+        break
+    elif not re.search("[A-Z]",password):  #this is password rule
+        raise ValueError("Not a Valid Password")
+        break
+    elif not re.search("[$#@]",password):  #this is password rule 
+        raise ValueError("Not a Valid Password")
+        break
+    else:
+        print("Valid Password")
+        val = False
+        break
\ No newline at end of file
diff --git a/The_Greatest_Common_Divisor.py b/The_Greatest_Common_Divisor.py
new file mode 100644
index 0000000..968eee0
--- /dev/null
+++ b/The_Greatest_Common_Divisor.py
@@ -0,0 +1,27 @@
+'''## 4. The Greatest Common Divisor
+As a user, I want to use a program which can calculate the `greatest common divisor (GCD)` of my inputs. 
+
+Acceptance Criteria:
+- Ask user the enter the number of inputs (n).
+- Ask user to enter `n` input numbers one by one.
+- Use try/except blocks to verify input entries and warn the user for Nan or non numerical inputs.
+- Calculate the greatest common divisor (GCD) of `n` numbers.
+- Use `gcd` function in module of math.
+'''
+
+import math
+def commond():
+    liste = []
+    try:
+        number =int(input("number of inputs: ")) #Ask user the enter the number of inputs (n).
+
+    except Exception:
+        print("de not enter Nan or non numerical inputs")
+
+    else:
+        for i in range(number):
+            j = int(input("enter the number :")) #Ask user to enter `n` input numbers one by one
+            liste.append(j)
+    return print(math.gcd(*liste)) #Calculate the greatest common divisor (GCD) of `n` numbers
+commond()
+    
diff --git a/__pycache__/my_dice.cpython-39.pyc b/__pycache__/my_dice.cpython-39.pyc
new file mode 100644
index 0000000..fbd5db0
Binary files /dev/null and b/__pycache__/my_dice.cpython-39.pyc differ
diff --git a/main.py b/main.py
new file mode 100644
index 0000000..8851d6a
--- /dev/null
+++ b/main.py
@@ -0,0 +1,4 @@
+import my_dice # calling  the new module my_dice
+repetition = int(input("entre repetition number:")) # getting an input from the user using "Enter repetition number:
+number = int(input("which number's percentage:"))  # getting an input from the user for using "which number's percentage:"
+print("The probability of",number,"is", my_dice.rollDice(repetition, number), "%")
\ No newline at end of file
diff --git a/my_dice.py b/my_dice.py
new file mode 100644
index 0000000..cf2293c
--- /dev/null
+++ b/my_dice.py
@@ -0,0 +1,10 @@
+def rollDice(repetition, number):
+    import random 
+    dice = [0, 0, 0, 0, 0, 0]
+
+    for i in range(repetition):
+        j = random.randrange(1, 7)
+        dice[j-1]+=1 # counting repetitions
+    percentage= dice[number-1]/repetition*100 # finding the percentage of repetition
+    return percentage
+