diff --git a/TaskF02/run.py b/TaskF02/run.py
index f85f653..3c906d7 100644
--- a/TaskF02/run.py
+++ b/TaskF02/run.py
@@ -22,10 +22,10 @@ def main_function(input_file, output_file):
             for row in file:
                 write_answer(analyze_line(row), output_file)
 
-output_file ='simple.out'
-input_file = 'simple.in'
-# input_file = sys.argv[1]
-# output_file = sys.argv[2]
+# output_file ='simple.out'
+# input_file = 'simple.in'
+input_file = sys.argv[1]
+output_file = sys.argv[2]
 main_function(input_file, output_file)
 
 
diff --git a/TaskF03/run.py b/TaskF03/run.py
new file mode 100644
index 0000000..132e11b
--- /dev/null
+++ b/TaskF03/run.py
@@ -0,0 +1,29 @@
+import re
+import sys
+
+def analyze_line(line):
+    lowercase_count = len(re.findall(r'\b[a-ząćęłńóśźż]\w*\b', line))
+    uppercase_count = len(re.findall(r'\b[A-ZĄĆĘŁŃÓŚŹŻ]\w*\b', line))
+
+    result_line = f"{lowercase_count} {uppercase_count}\n"
+    return result_line
+
+
+def write_answer(row, ouput_file):
+    with open(ouput_file, "a", encoding="utf-8") as file:
+        file.write(row)
+
+
+def main_function(input_file, output_file):
+    with open(output_file, "w", encoding="utf-8") as output_file1:
+        with open(input_file, "r", encoding="utf-8") as file:
+            for row in file:
+                write_answer(analyze_line(row), output_file)
+
+# output_file ='simple.out'
+# input_file = 'simple.in'
+input_file = sys.argv[1]
+output_file = sys.argv[2]
+main_function(input_file, output_file)
+
+
diff --git a/TaskF03/simple.out b/TaskF03/simple.out
new file mode 100644
index 0000000..614a0b7
--- /dev/null
+++ b/TaskF03/simple.out
@@ -0,0 +1,2 @@
+2 1
+1 0
diff --git a/TaskF04/run.py b/TaskF04/run.py
new file mode 100644
index 0000000..0158bba
--- /dev/null
+++ b/TaskF04/run.py
@@ -0,0 +1,29 @@
+import re
+import sys
+
+def analyze_line(line):
+    lowercase_count = len(re.findall(r'\b[a-ząćęłńóśźż]\w*\b', line))
+    uppercase_count = len(re.findall(r'\b[A-ZĄĆĘŁŃÓŚŹŻ]\w*\b', line))
+
+    result_line = f"{lowercase_count} {uppercase_count}\n"
+    return result_line
+
+
+def write_answer(row, ouput_file):
+    with open(ouput_file, "a", encoding="utf-8") as file:
+        file.write(row)
+
+
+def main_function(input_file, output_file):
+    with open(output_file, "w", encoding="utf-8") as output_file1:
+        with open(input_file, "r", encoding="utf-8") as file:
+            for row in file:
+                write_answer(analyze_line(row), output_file)
+
+output_file ='simple.out'
+input_file = 'simple.in'
+# input_file = sys.argv[1]
+# output_file = sys.argv[2]
+main_function(input_file, output_file)
+
+