diff --git a/task1.py b/task1.py
new file mode 100644
index 0000000..5faa170
--- /dev/null
+++ b/task1.py
@@ -0,0 +1,5 @@
+b = input().split(' ')
+sum = 0
+for i in b:
+    sum = sum + float(i)
+print(sum)
diff --git a/task2.py b/task2.py
new file mode 100644
index 0000000..7e0d5b3
--- /dev/null
+++ b/task2.py
@@ -0,0 +1,15 @@
+stroka = input()
+while True:
+    str_sim2 = str()
+    a = ''
+    a = input()
+    if a == '':
+        break
+    sim1, sim2 = a.split('->')[0], a.split('->')[1]
+    for i in stroka:
+        if  i == sim1:
+            str_sim2 = str_sim2 + sim2
+        else:
+            str_sim2 = str_sim2 + i  
+    stroka = str_sim2
+    print(stroka)
diff --git a/task3.py b/task3.py
new file mode 100644
index 0000000..e0e846e
--- /dev/null
+++ b/task3.py
@@ -0,0 +1,6 @@
+c = input().split(' ')
+stroka = str()
+for i in c:
+    m = int(abs(float(i)))
+    stroka = stroka + str(m) + ' '
+print(stroka[:-1])
diff --git a/task4.py b/task4.py
new file mode 100644
index 0000000..066a043
--- /dev/null
+++ b/task4.py
@@ -0,0 +1,5 @@
+a = input().split(' ')
+summa = int()
+for i in a:
+    summa = summa + float(i) ** 2
+print(summa)
diff --git a/task5.py b/task5.py
new file mode 100644
index 0000000..320c0d7
--- /dev/null
+++ b/task5.py
@@ -0,0 +1,12 @@
+alfavit = "abcdefghijklmnopqrstuvwxyz"
+a = input().split(' ')
+kod = int(input())
+b = ''.join(a)
+stroka = ''
+for i in b:
+    index = alfavit.find(i)
+    k = index + kod
+    while k >= len(alfavit):
+        k = k - len(alfavit)
+    stroka = stroka + alfavit[k]
+print(stroka))