diff --git a/hw1-1.py b/hw1-1.py
new file mode 100644
index 0000000..0a755a8
--- /dev/null
+++ b/hw1-1.py
@@ -0,0 +1,2 @@
+input = input().split()
+print(sum([float(n) for n in input]))
diff --git a/hw1-2.py b/hw1-2.py
new file mode 100644
index 0000000..1adea44
--- /dev/null
+++ b/hw1-2.py
@@ -0,0 +1,20 @@
+string = "THE QUICK BROWN FOX JUMPS OVER THE LAZY DOG"
+string2 = "WHY THE HELL DO I NEED WHILE TRUE HERE"
+def replacement(stcringe):
+    while True:
+        print(stcringe.replace('A', '4'))
+        print(stcringe.replace('I', '1'))
+        print(stcringe.replace('E', '3'))
+        break
+
+replacement(string)
+replacement(string2)
+
+# okay check this
+replacements = {'A': '4',
+                'I': '1',
+                'E': '3'}
+for letter in replacements:
+    while letter in string:
+        string = string[:string.find(letter)] + replacements[letter] + string[string.find(letter) + 1:]
+    print(string)
diff --git a/hw1-3.py b/hw1-3.py
new file mode 100644
index 0000000..0aeb3b4
--- /dev/null
+++ b/hw1-3.py
@@ -0,0 +1,2 @@
+input = input().split()
+print([int((float(n) * float(n)) ** 0.5) for n in input])
\ No newline at end of file
diff --git a/hw1-4.py b/hw1-4.py
new file mode 100644
index 0000000..bfd682d
--- /dev/null
+++ b/hw1-4.py
@@ -0,0 +1,2 @@
+input = input().split()
+print(sum(float(n) ** 2 for n in input))
\ No newline at end of file
diff --git a/hw1-5.py b/hw1-5.py
new file mode 100644
index 0000000..0990e52
--- /dev/null
+++ b/hw1-5.py
@@ -0,0 +1,9 @@
+def ceaserCipher(str, key):
+    new_str = ''
+    for el in str:
+        new_str = new_str + chr(((ord(el) - 97 + key) % 26) + 97)
+    return(new_str)
+
+print(ceaserCipher('i am atomic', 7))
+print(ceaserCipher('i am atomic', 1024))
+print(ceaserCipher('abcdefghijklmnopqrstuvwxyz', 27))
\ No newline at end of file