diff --git a/TaskF04/run.py b/TaskF04/run.py
index 0158bba..8766b89 100644
--- a/TaskF04/run.py
+++ b/TaskF04/run.py
@@ -1,29 +1,38 @@
 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 replace_second_number(line):
+    pattern = re.compile(r'(\D*\d+\D*).*?(\d+)(.*)')
+    group1, group2, group3 = '', '', ''
+    matches = pattern.search(line)
+    if matches:
+        group1 = matches.group(1)
+        group2 = matches.group(2)
+        group3 = matches.group(3)
+        print('group1:', group1)
+        print('group2:', group2)
+        print('group3:', group3)
+    if group2 != '':
+        modified_line = group1 + group3
+        return modified_line
+    else:
+        return line
 
 def write_answer(row, ouput_file):
     with open(ouput_file, "a", encoding="utf-8") as file:
-        file.write(row)
+        file.write(row+'\n')
 
 
 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)
+                write_answer(replace_second_number(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/TaskF04/simple.in b/TaskF04/simple.in
index 5d7461c..ed5ad39 100644
--- a/TaskF04/simple.in
+++ b/TaskF04/simple.in
@@ -1,3 +1,3 @@
 Mam 2 jabłka i 35 banananów.
 Mam 2 jabłka i 35 banananów oraz 20 gruszek.
-Widziałem 2 bociany.
+Widziałem 2 bociany.
\ No newline at end of file
diff --git a/TaskF04/simple.out b/TaskF04/simple.out
new file mode 100644
index 0000000..d42a47f
--- /dev/null
+++ b/TaskF04/simple.out
@@ -0,0 +1,3 @@
+Mam 2 jabłka i  banananów.
+Mam 22 jabłka i  banananów oraz 20 gruszek.
+Widziałem 2 bociany.