diff --git a/.idea/.gitignore b/.idea/.gitignore
new file mode 100644
index 0000000..615d64b
--- /dev/null
+++ b/.idea/.gitignore
@@ -0,0 +1,10 @@
+# Default ignored files
+/shelf/
+/workspace.xml
+# Editor-based HTTP Client requests
+/httpRequests/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml
+# Django PowerTools cache (generated)
+/djangoPowerTools/
diff --git a/.idea/DataCompression.iml b/.idea/DataCompression.iml
new file mode 100644
index 0000000..2455e85
--- /dev/null
+++ b/.idea/DataCompression.iml
@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="PYTHON_MODULE" version="4">
+  <component name="NewModuleRootManager">
+    <content url="file://$MODULE_DIR$">
+      <excludeFolder url="file://$MODULE_DIR$/.venv" />
+    </content>
+    <orderEntry type="jdk" jdkName="uv (DataCompression)" jdkType="Python SDK" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>
\ No newline at end of file
diff --git a/.idea/inspectionProfiles/profiles_settings.xml b/.idea/inspectionProfiles/profiles_settings.xml
new file mode 100644
index 0000000..105ce2d
--- /dev/null
+++ b/.idea/inspectionProfiles/profiles_settings.xml
@@ -0,0 +1,6 @@
+<component name="InspectionProjectProfileManager">
+  <settings>
+    <option name="USE_PROJECT_PROFILE" value="false" />
+    <version value="1.0" />
+  </settings>
+</component>
\ No newline at end of file
diff --git a/.idea/misc.xml b/.idea/misc.xml
new file mode 100644
index 0000000..f5b713b
--- /dev/null
+++ b/.idea/misc.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Black">
+    <option name="sdkName" value="uv (DataCompression)" />
+  </component>
+  <component name="ProjectRootManager" version="2" project-jdk-name="uv (DataCompression)" project-jdk-type="Python SDK" />
+</project>
\ No newline at end of file
diff --git a/.idea/modules.xml b/.idea/modules.xml
new file mode 100644
index 0000000..bbc1ed0
--- /dev/null
+++ b/.idea/modules.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/DataCompression.iml" filepath="$PROJECT_DIR$/.idea/DataCompression.iml" />
+    </modules>
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/vcs.xml b/.idea/vcs.xml
new file mode 100644
index 0000000..35eb1dd
--- /dev/null
+++ b/.idea/vcs.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="" vcs="Git" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/Counting/Counting.py b/Counting/Counting.py
new file mode 100644
index 0000000..928cd82
--- /dev/null
+++ b/Counting/Counting.py
@@ -0,0 +1,42 @@
+import logging
+logging.basicConfig(
+    level=logging.INFO,
+    format='%(asctime)s - %(levelname)s - %(message)s',
+    handlers=[
+        logging.FileHandler('arithmetic_coding.log'),
+        logging.StreamHandler()
+    ]
+)
+dict={
+    "A":[0,0.1],
+    "R":[0.1,0.2],
+    "I":[0.2,0.4],
+    "T":[0.4,0.6],
+    "H":[0.6,0.7],
+    "M":[0.7,0.8],
+    "E":[0.8,0.9],
+    "C":[0.9,1],
+}
+
+def count(word):
+    low = 0.0
+    high = 1.0
+
+    for char in word:
+        if char not in dict:
+            raise ValueError(f"Character '{char}' not in probability dictionary")
+
+        # Calculate new range
+        range_ = high - low
+        new_low = low + dict[char][0] * range_
+        new_high = low + dict[char][1] * range_
+
+        # Update range
+        low, high = new_low, new_high
+        print(f'({low:.15f}, {high:.15f})')
+        logging.info(f"  Range updated to: [{new_low:.15f}, {new_high:.15f}] (width: {new_high-new_low:.15f})")
+    # Return the final range
+    return (low + high) / 2
+
+if __name__ == "__main__":
+    count("ARITHMETIC")
diff --git a/Counting/Snipaste_2025-10-23_13-01-54.png b/Counting/Snipaste_2025-10-23_13-01-54.png
new file mode 100644
index 0000000..7614398
Binary files /dev/null and b/Counting/Snipaste_2025-10-23_13-01-54.png differ
diff --git a/Counting/__init__.py b/Counting/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/Counting/arithmetic_coding.log b/Counting/arithmetic_coding.log
new file mode 100644
index 0000000..d237912
--- /dev/null
+++ b/Counting/arithmetic_coding.log
@@ -0,0 +1,78 @@
+2025-10-23 12:57:16,149 - INFO - Starting arithmetic coding for word: ARITHMETIC
+2025-10-23 12:57:16,149 - INFO - Processing character 1/10: 'A' (range: [0.0000, 0.1000])
+2025-10-23 12:57:16,149 - INFO -   Range updated to: [0.000000000000000, 0.100000000000000] (width: 0.100000000000000)
+2025-10-23 12:57:16,149 - INFO - Processing character 2/10: 'R' (range: [0.1000, 0.2000])
+2025-10-23 12:57:16,149 - INFO -   Range updated to: [0.010000000000000, 0.020000000000000] (width: 0.010000000000000)
+2025-10-23 12:57:16,149 - INFO - Processing character 3/10: 'I' (range: [0.2000, 0.4000])
+2025-10-23 12:57:16,149 - INFO -   Range updated to: [0.012000000000000, 0.014000000000000] (width: 0.002000000000000)
+2025-10-23 12:57:16,171 - INFO - Processing character 4/10: 'T' (range: [0.4000, 0.6000])
+2025-10-23 12:57:16,171 - INFO -   Range updated to: [0.012800000000000, 0.013200000000000] (width: 0.000400000000000)
+2025-10-23 12:57:16,171 - INFO - Processing character 5/10: 'H' (range: [0.6000, 0.7000])
+2025-10-23 12:57:16,171 - INFO -   Range updated to: [0.013040000000000, 0.013080000000000] (width: 0.000040000000000)
+2025-10-23 12:57:16,172 - INFO - Processing character 6/10: 'M' (range: [0.7000, 0.8000])
+2025-10-23 12:57:16,172 - INFO -   Range updated to: [0.013068000000000, 0.013072000000000] (width: 0.000004000000000)
+2025-10-23 12:57:16,172 - INFO - Processing character 7/10: 'E' (range: [0.8000, 0.9000])
+2025-10-23 12:57:16,172 - INFO -   Range updated to: [0.013071200000000, 0.013071600000000] (width: 0.000000400000000)
+2025-10-23 12:57:16,172 - INFO - Processing character 8/10: 'T' (range: [0.4000, 0.6000])
+2025-10-23 12:57:16,172 - INFO -   Range updated to: [0.013071360000000, 0.013071440000000] (width: 0.000000080000000)
+2025-10-23 12:57:16,172 - INFO - Processing character 9/10: 'I' (range: [0.2000, 0.4000])
+2025-10-23 12:57:16,172 - INFO -   Range updated to: [0.013071376000000, 0.013071392000000] (width: 0.000000016000000)
+2025-10-23 12:57:16,172 - INFO - Processing character 10/10: 'C' (range: [0.9000, 1.0000])
+2025-10-23 12:57:16,172 - INFO -   Range updated to: [0.013071390400000, 0.013071392000000] (width: 0.000000001600000)
+2025-10-23 12:57:16,172 - INFO - Final result for 'ARITHMETIC': 0.013071391200000
+2025-10-23 12:57:16,172 - INFO - --------------------------------------------------
+2025-10-23 12:57:16,172 - INFO - Starting arithmetic coding for word: MATH
+2025-10-23 12:57:16,172 - INFO - Processing character 1/4: 'M' (range: [0.7000, 0.8000])
+2025-10-23 12:57:16,172 - INFO -   Range updated to: [0.700000000000000, 0.800000000000000] (width: 0.100000000000000)
+2025-10-23 12:57:16,172 - INFO - Processing character 2/4: 'A' (range: [0.0000, 0.1000])
+2025-10-23 12:57:16,172 - INFO -   Range updated to: [0.700000000000000, 0.710000000000000] (width: 0.010000000000000)
+2025-10-23 12:57:16,172 - INFO - Processing character 3/4: 'T' (range: [0.4000, 0.6000])
+2025-10-23 12:57:16,172 - INFO -   Range updated to: [0.704000000000000, 0.706000000000000] (width: 0.002000000000000)
+2025-10-23 12:57:16,172 - INFO - Processing character 4/4: 'H' (range: [0.6000, 0.7000])
+2025-10-23 12:57:16,172 - INFO -   Range updated to: [0.705200000000000, 0.705400000000000] (width: 0.000200000000000)
+2025-10-23 12:57:16,172 - INFO - Final result for 'MATH': 0.705300000000000
+2025-10-23 12:57:16,172 - INFO - --------------------------------------------------
+2025-10-23 12:57:16,172 - INFO - Starting arithmetic coding for word: RICE
+2025-10-23 12:57:16,172 - INFO - Processing character 1/4: 'R' (range: [0.1000, 0.2000])
+2025-10-23 12:57:16,172 - INFO -   Range updated to: [0.100000000000000, 0.200000000000000] (width: 0.100000000000000)
+2025-10-23 12:57:16,172 - INFO - Processing character 2/4: 'I' (range: [0.2000, 0.4000])
+2025-10-23 12:57:16,172 - INFO -   Range updated to: [0.120000000000000, 0.140000000000000] (width: 0.020000000000000)
+2025-10-23 12:57:16,172 - INFO - Processing character 3/4: 'C' (range: [0.9000, 1.0000])
+2025-10-23 12:57:16,172 - INFO -   Range updated to: [0.138000000000000, 0.140000000000000] (width: 0.002000000000000)
+2025-10-23 12:57:16,172 - INFO - Processing character 4/4: 'E' (range: [0.8000, 0.9000])
+2025-10-23 12:57:16,172 - INFO -   Range updated to: [0.139600000000000, 0.139800000000000] (width: 0.000200000000000)
+2025-10-23 12:57:16,172 - INFO - Final result for 'RICE': 0.139700000000000
+2025-10-23 12:57:16,172 - INFO - --------------------------------------------------
+2025-10-23 12:57:54,803 - INFO - Starting arithmetic coding for word: ARITHMETIC
+2025-10-23 12:57:54,804 - INFO - Processing character 1/10: 'A' (range: [0.0000, 0.1000])
+2025-10-23 12:57:54,804 - INFO -   Range updated to: [0.000000000000000, 0.100000000000000] (width: 0.100000000000000)
+2025-10-23 12:57:54,804 - INFO - Processing character 2/10: 'R' (range: [0.1000, 0.2000])
+2025-10-23 12:57:54,804 - INFO -   Range updated to: [0.010000000000000, 0.020000000000000] (width: 0.010000000000000)
+2025-10-23 12:57:54,804 - INFO - Processing character 3/10: 'I' (range: [0.2000, 0.4000])
+2025-10-23 12:57:54,804 - INFO -   Range updated to: [0.012000000000000, 0.014000000000000] (width: 0.002000000000000)
+2025-10-23 12:57:54,804 - INFO - Processing character 4/10: 'T' (range: [0.4000, 0.6000])
+2025-10-23 12:57:54,804 - INFO -   Range updated to: [0.012800000000000, 0.013200000000000] (width: 0.000400000000000)
+2025-10-23 12:57:54,804 - INFO - Processing character 5/10: 'H' (range: [0.6000, 0.7000])
+2025-10-23 12:57:54,804 - INFO -   Range updated to: [0.013040000000000, 0.013080000000000] (width: 0.000040000000000)
+2025-10-23 12:57:54,804 - INFO - Processing character 6/10: 'M' (range: [0.7000, 0.8000])
+2025-10-23 12:57:54,804 - INFO -   Range updated to: [0.013068000000000, 0.013072000000000] (width: 0.000004000000000)
+2025-10-23 12:57:54,804 - INFO - Processing character 7/10: 'E' (range: [0.8000, 0.9000])
+2025-10-23 12:57:54,804 - INFO -   Range updated to: [0.013071200000000, 0.013071600000000] (width: 0.000000400000000)
+2025-10-23 12:57:54,804 - INFO - Processing character 8/10: 'T' (range: [0.4000, 0.6000])
+2025-10-23 12:57:54,804 - INFO -   Range updated to: [0.013071360000000, 0.013071440000000] (width: 0.000000080000000)
+2025-10-23 12:57:54,804 - INFO - Processing character 9/10: 'I' (range: [0.2000, 0.4000])
+2025-10-23 12:57:54,804 - INFO -   Range updated to: [0.013071376000000, 0.013071392000000] (width: 0.000000016000000)
+2025-10-23 12:57:54,804 - INFO - Processing character 10/10: 'C' (range: [0.9000, 1.0000])
+2025-10-23 12:57:54,804 - INFO -   Range updated to: [0.013071390400000, 0.013071392000000] (width: 0.000000001600000)
+2025-10-23 12:57:54,804 - INFO - Final result for 'ARITHMETIC': 0.013071391200000
+2025-10-23 12:57:54,804 - INFO - --------------------------------------------------
+2025-10-23 13:01:05,602 - INFO -   Range updated to: [0.000000000000000, 0.100000000000000] (width: 0.100000000000000)
+2025-10-23 13:01:05,603 - INFO -   Range updated to: [0.010000000000000, 0.020000000000000] (width: 0.010000000000000)
+2025-10-23 13:01:05,603 - INFO -   Range updated to: [0.012000000000000, 0.014000000000000] (width: 0.002000000000000)
+2025-10-23 13:01:05,603 - INFO -   Range updated to: [0.012800000000000, 0.013200000000000] (width: 0.000400000000000)
+2025-10-23 13:01:05,603 - INFO -   Range updated to: [0.013040000000000, 0.013080000000000] (width: 0.000040000000000)
+2025-10-23 13:01:05,603 - INFO -   Range updated to: [0.013068000000000, 0.013072000000000] (width: 0.000004000000000)
+2025-10-23 13:01:05,603 - INFO -   Range updated to: [0.013071200000000, 0.013071600000000] (width: 0.000000400000000)
+2025-10-23 13:01:05,603 - INFO -   Range updated to: [0.013071360000000, 0.013071440000000] (width: 0.000000080000000)
+2025-10-23 13:01:05,603 - INFO -   Range updated to: [0.013071376000000, 0.013071392000000] (width: 0.000000016000000)
+2025-10-23 13:01:05,603 - INFO -   Range updated to: [0.013071390400000, 0.013071392000000] (width: 0.000000001600000)