diff --git a/Ex1.py b/Ex1.py
new file mode 100644
index 0000000..e34ed2e
--- /dev/null
+++ b/Ex1.py
@@ -0,0 +1,20 @@
+lst = []
+num=int(input("please enter ths shifting number: "))
+
+while True:
+    lst_item = input("please enter your list item, or press ENTER to end the list: ")
+    if lst_item == "":
+        break
+    lst.append(lst_item)
+lst_copy= lst.copy()  
+print("your original list is: ",lst)
+for i in range(len(lst)):
+    if i+num < len(lst):
+        lst[i+num]=lst_copy[i]
+       
+    else:
+        lst[abs(len(lst)-(i+num))]= lst_copy[i]
+        
+print("your shifted list is: ",lst) 
+
+
diff --git a/Ex2.py b/Ex2.py
new file mode 100644
index 0000000..8541aa2
--- /dev/null
+++ b/Ex2.py
@@ -0,0 +1,29 @@
+import collections
+from itertools import count
+
+
+user_sentence = input("please enter your sentence: ")
+user_sentence = user_sentence.lower()
+my_dict = {}
+dict_add = {}
+
+for i in range(len(user_sentence)):
+    if user_sentence[i] ==' ':
+        continue
+    letter_count =user_sentence.count( user_sentence[i])
+    my_dict = { user_sentence[i] : letter_count }
+    dict_add.update(my_dict)
+
+
+sorted_dict_add = collections.OrderedDict(sorted(dict_add.items()))
+print("\nletter \t number of occurances ")
+for i in sorted_dict_add:
+    print("{}\t{}".format(i,sorted_dict_add[i]))
+
+ 
+
+ 
+
+
+
+
diff --git a/ex3.py b/ex3.py
new file mode 100644
index 0000000..e0ddd1a
--- /dev/null
+++ b/ex3.py
@@ -0,0 +1,35 @@
+import string
+lst=[]
+
+word1 = set(input("please enter the first word: ").lower())
+word2 = set(input("please enter the second word: ").lower())
+
+sharedLetters = list(word1&word2)
+uniquieWord1 = list(word1-word2)
+uniquieWord2  = list(word2-word1)
+
+ 
+#Sort list alphabetically and return list
+sorted_sharedLetters = sorted(sharedLetters)
+sorted_uniquieWord1 = sorted(uniquieWord1)
+sorted_uniquieWord2 = sorted(uniquieWord2)
+
+
+#Combine list elements into one string
+sorted_sharedLetters_string = "".join(sorted_sharedLetters)
+sorted_sorted_uniquieWord1 = "".join(sorted_uniquieWord1)
+sorted_sorted_uniquieWord2 = "".join(sorted_uniquieWord2)
+
+
+ 
+
+
+
+lst.append(sorted_sharedLetters_string)
+lst.append(sorted_sorted_uniquieWord1)
+lst.append(sorted_sorted_uniquieWord2)
+print(lst)
+
+
+
+ 
\ No newline at end of file
diff --git a/ex4.py b/ex4.py
new file mode 100644
index 0000000..bb90b5e
--- /dev/null
+++ b/ex4.py
@@ -0,0 +1,20 @@
+def nearestFun(i):
+ while i>0:
+        y = True
+        if(str(i) == str(i)[::-1]):
+            if(i>2):
+                for a in range(2,i):
+                    if(i%a==0):
+                        y = False
+                        break
+                if y:
+                    return i
+        i = i-1             
+
+
+
+Num = list(map(int, input("please enter numbers seperated by space, press enter to finish Entering: ").split()))
+multi=1
+for i in Num:
+    multi = i*multi
+print(nearestFun(multi))
\ No newline at end of file