diff --git a/TP02/ariteval/tests/hello02.txt b/TP02/ariteval/tests/hello02.txt
new file mode 100644
index 0000000..62cfe6d
--- /dev/null
+++ b/TP02/ariteval/tests/hello02.txt
@@ -0,0 +1 @@
+(2*4+3)+(4+3*2)
diff --git a/TP02/demo_files/exo6/Exercice6.g4 b/TP02/demo_files/exo6/Exercice6.g4
new file mode 100644
index 0000000..bc3cf4e
--- /dev/null
+++ b/TP02/demo_files/exo6/Exercice6.g4
@@ -0,0 +1,18 @@
+//define a lexical analyser called Exercice6
+
+grammar Exercice6;
+
+full_expr: expr ';' EOF ;
+
+expr:
+    | LBRA expr RBRA expr
+    | LPAR expr RPAR expr
+    | 
+    ;
+
+LPAR: '(' ;
+RPAR: ')' ;
+LBRA: '[' ;
+RBRA: ']' ;
+CHARS: ~[()[\]] -> skip;
+WS: [ \t\r\n]+ -> skip ; // skip spaces, tabs, newlines
diff --git a/TP02/demo_files/exo6/Makefile b/TP02/demo_files/exo6/Makefile
new file mode 100644
index 0000000..685ef14
--- /dev/null
+++ b/TP02/demo_files/exo6/Makefile
@@ -0,0 +1,17 @@
+MAINFILE = main
+PACKAGE = Exercice6
+
+ifndef ANTLR4
+$(error variable ANTLR4 is not set)
+endif
+
+default: $(PACKAGE).py
+
+$(PACKAGE).py: $(PACKAGE).g4
+	$(ANTLR4) $^ -Dlanguage=Python3
+
+run: $(MAINFILE).py $(PACKAGE)*.py
+	python3 $<
+
+clean:
+	rm -rf *~ $(PACKAGE)*.py $(PACKAGE)*.pyc *.interp *.tokens  __pycache*
diff --git a/TP02/demo_files/exo6/main.py b/TP02/demo_files/exo6/main.py
new file mode 100644
index 0000000..dc0d5d2
--- /dev/null
+++ b/TP02/demo_files/exo6/main.py
@@ -0,0 +1,22 @@
+from antlr4 import InputStream
+from antlr4 import CommonTokenStream
+
+# include to use the generated lexer and parser
+from Exercice6Lexer import Exercice6Lexer
+from Exercice6Parser import Exercice6Parser
+
+import sys
+
+
+def main():
+    input_stream = InputStream(sys.stdin.read())
+    lexer = Exercice6Lexer(input_stream)
+    stream = CommonTokenStream(lexer)
+    parser = Exercice6Parser(stream)
+    parser.full_expr()  # We want to recognize full_expr in grammar Exercice6
+    print("Finished")
+
+
+# warns pb if py file is included in others
+if __name__ == '__main__':
+    main()
diff --git a/TP02/requirements.txt b/TP02/requirements.txt
new file mode 100644
index 0000000..4b7031c
--- /dev/null
+++ b/TP02/requirements.txt
@@ -0,0 +1,6 @@
+antlr-python3-runtime==4.13.1
+pyright
+pytest
+pytest-cov
+pytest-xdist
+graphviz