diff --git a/TaskE03/run.py b/TaskE03/run.py
new file mode 100644
index 0000000..14be7a5
--- /dev/null
+++ b/TaskE03/run.py
@@ -0,0 +1,9 @@
+import sys
+import re
+
+for line in sys.stdin:
+    numbers = re.fullmatch(r"(\d{3}-\d{3}-\d{2}-\d{2})|(\d{3}-\d{2}-\d{2}-\d{3})", line.replace("\n", ""), flags=re.IGNORECASE)
+    if numbers:
+        print("yes")
+    else:
+        print("no")
\ No newline at end of file
diff --git a/TaskE20/run.py b/TaskE20/run.py
new file mode 100644
index 0000000..8f75f31
--- /dev/null
+++ b/TaskE20/run.py
@@ -0,0 +1,9 @@
+import sys
+import re
+
+for line in sys.stdin:
+    numbers = re.match(r'^(0?[0-9]{2}) (\d{1}-\d{3}-\d{3})$', line.replace("\n", ""), flags=re.IGNORECASE)
+    if numbers:
+        print(numbers)
+    else:
+        print("<NONE>")
\ No newline at end of file
diff --git a/TaskE42/run.py b/TaskE42/run.py
new file mode 100644
index 0000000..494856c
--- /dev/null
+++ b/TaskE42/run.py
@@ -0,0 +1,9 @@
+import sys
+import re
+
+for line in sys.stdin:
+    str = re.match(r'(NIE|NO).*[EO]{6,}.*!!!.*', line.replace("\n", ""), flags=re.IGNORECASE)
+    if str:
+        print('yes')
+    else:
+        print("no")
\ No newline at end of file
diff --git a/TaskE48/run.py b/TaskE48/run.py
new file mode 100644
index 0000000..8bf2db7
--- /dev/null
+++ b/TaskE48/run.py
@@ -0,0 +1,9 @@
+import sys
+import re
+
+for line in sys.stdin:
+    numbers = re.match(r'^[a-ząćęłńóśźżA-ZĄĆĘŁŃÓŚŹŻ]([a-zA-ZąćęłńóśźżĄĆĘŁŃÓŚŹŻ]*[a-zA-ZąćęłńóśźżĄĆĘŁŃÓŚŹŻ])?$', line.replace("\n", ""), flags=re.IGNORECASE)
+    if numbers:
+        print('yes')
+    else:
+        print("no")
\ No newline at end of file