diff --git a/analysis.py b/analysis.py
new file mode 100644
index 0000000..df04339
--- /dev/null
+++ b/analysis.py
@@ -0,0 +1,92 @@
+import ast
+import shutil
+from typing import List, Tuple
+from pprint import pprint
+from enum import Enum
+
+
+'''
+AST analyzer
+'''
+class Analyzer(ast.NodeVisitor):
+    def __init__(self) -> None:
+        self.stats = {
+            'for': 0,
+            'import': [],
+        }
+    
+    def visit_For(self, node):
+        for alias in node.names:
+            self.stats['for'].append(alias.name)
+        self.generic_visit(node)
+    
+    def visit_Import(self, node):
+        for alias in node.names:
+            self.stats["import"].append(alias.name)
+        self.generic_visit(node)
+    
+    def report(self):
+        pprint(self.stats)
+
+
+'''
+Notation format enum
+'''
+class NotationFormat(Enum):
+    
+    BIG_O : str = 'BIG O'
+    BIG_OMEGA : str = 'BIG Ω (OMEGA)'
+    BIG_THETA : str = 'BIG Θ (THETA)'
+    
+    def __str__(self) -> str:
+        return str(self.value)
+
+
+'''
+Class that contains and represents analysis data
+'''
+class AnalysisFormatter:
+    
+    def __init__(
+        self, 
+        notation_format: NotationFormat, 
+        func_name: str = 'No name', 
+        func_attrs: List[Tuple[str, str]] | None = None, 
+        complexity: str = '1', 
+        memory: str = '1',
+    ) -> None:
+        
+        self.notation_format = notation_format
+        self.func_name = func_name
+        self.func_attrs = func_attrs
+        self.complexity = complexity
+        self.memory = memory
+    
+    def report(self, full=True):
+        
+        print()
+        
+        if full:
+            print('Function name:', self.func_name)
+            
+            if self.func_attrs:
+                print('Function attributes:', ', '.join([f'{attr_name}: {attr_type}' for attr_name, attr_type in self.func_attrs]))
+            
+            terminal_width = shutil.get_terminal_size().columns
+            indent = max((terminal_width - len(self.notation_format.__str__()) - 2)//2, 0)
+            print('-' * indent + f' {self.notation_format.__str__()} ' + '-' * indent)
+        
+        if self.notation_format == NotationFormat.BIG_O:
+            print('Сomplexity of algorithm: O({})'.format(self.complexity))
+            print('Memory of algorithm: O({})'.format(self.memory))
+        
+        if self.notation_format == NotationFormat.BIG_OMEGA:
+            print('Сomplexity of algorithm: Ω({})'.format(self.complexity))
+            print('Memory of algorithm: Ω({})'.format(self.memory))
+            
+        if self.notation_format == NotationFormat.BIG_THETA:
+            print('Сomplexity of algorithm: Θ({})'.format(self.complexity))
+            print('Memory of algorithm: Θ({})'.format(self.memory))
+        
+        print()
+        
\ No newline at end of file
diff --git a/notations.py b/notations.py
new file mode 100644
index 0000000..05bfa36
--- /dev/null
+++ b/notations.py
@@ -0,0 +1,109 @@
+import ast
+import inspect
+from typing import List, Tuple
+
+<<<<<<<< HEAD:pycomplexity/notations.py
+from pycomplexity.analysis import Analyzer, AnalysisFormatter, NotationFormat
+========
+from analysis import Analyzer, AnalysisFormatter, NotationFormat
+>>>>>>>> b9371afd8058da6c402979f1d0bf20215ea8fbc7:notations.py
+
+
+'''
+Base class of asymptotic notation
+'''
+class AsymptoticNotation:
+
+    def __init__(self, full_report: bool = True) -> None:
+        self.full_report = full_report
+    
+    def _code_to_string(self, func) -> str:
+        code = inspect.getsource(func)
+        code_lines = code.split('\n')[1:]
+        modified_code = '\n'.join(code_lines)
+        return modified_code
+    
+    def _get_ast(self, func) -> ast.Module:
+        code_str = self._code_to_string(func)
+        return ast.parse(code_str)
+    
+    def analyze(self, func):
+        analyzer = Analyzer()
+        tree = self._get_ast(func)
+        # print(ast.dump(tree, indent=4))
+        
+        for node in ast.walk(tree):
+            # print(node)
+            if isinstance(node, ast.FunctionDef):
+                func_name = node.name
+            
+            if isinstance(node, ast.For):
+                print(node, node.body, node.iter)
+
+        # analyzer.visit(tree)
+        # analyzer.report()
+        
+        return func_name or 'No name', ...
+    
+    def report(func):
+        def wrapper(self, *args, **kwargs):
+            analysis_formatter: AnalysisFormatter = func(self, *args, **kwargs)
+            return analysis_formatter.report(full=self.full_report)
+        return wrapper
+
+
+'''
+Implementation of Big O notation
+'''
+class BigO(AsymptoticNotation):
+
+    def __init__(self) -> None:
+        super().__init__()
+    
+    @AsymptoticNotation.report
+    def complexity(self, func) -> AnalysisFormatter:
+        
+        func_name, _ = self.analyze(func)
+        
+        return AnalysisFormatter(
+            func_name=func_name,
+            notation_format=NotationFormat.BIG_O,
+        )
+
+
+'''
+Implementation of Big Omega notation
+'''
+class BigOmega(AsymptoticNotation):
+    
+    def __init__(self) -> None:
+        super().__init__()
+    
+    @AsymptoticNotation.report
+    def complexity(self, func) -> AnalysisFormatter:
+        
+        func_name, _ = self.analyze(func)
+        
+        return AnalysisFormatter(
+            func_name=func_name,
+            notation_format=NotationFormat.BIG_OMEGA,
+        )
+        
+        
+'''
+Implementation of Big Theta notation
+'''
+class BigTheta(AsymptoticNotation):
+    
+    def __init__(self) -> None:
+        super().__init__()
+    
+    @AsymptoticNotation.report
+    def complexity(self, func) -> AnalysisFormatter:
+        
+        func_name, _ = self.analyze(func)
+        
+        return AnalysisFormatter(
+            func_name=func_name,
+            notation_format=NotationFormat.BIG_THETA,
+        )
\ No newline at end of file
diff --git a/pycomplexity/notations.py b/pycomplexity/notations.py
index 2ba38d2..05bfa36 100644
--- a/pycomplexity/notations.py
+++ b/pycomplexity/notations.py
@@ -2,7 +2,11 @@
 import inspect
 from typing import List, Tuple
 
+<<<<<<<< HEAD:pycomplexity/notations.py
 from pycomplexity.analysis import Analyzer, AnalysisFormatter, NotationFormat
+========
+from analysis import Analyzer, AnalysisFormatter, NotationFormat
+>>>>>>>> b9371afd8058da6c402979f1d0bf20215ea8fbc7:notations.py
 
 
 '''