diff --git a/.vscode/c_cpp_properties.json b/.vscode/c_cpp_properties.json
index 612616b..574f28f 100644
--- a/.vscode/c_cpp_properties.json
+++ b/.vscode/c_cpp_properties.json
@@ -4,7 +4,8 @@
             "name": "Linux",
             "includePath": [
                 "${workspaceFolder}/include",
-                "${workspaceFolder}/**"
+                "${workspaceFolder}/**",
+                "${workspaceFolder}/lib/generated"
             ],
             "defines": [],
             "compilerPath": "/usr/lib64/ccache/clang",
diff --git a/.vscode/settings.json b/.vscode/settings.json
index 21e80e3..16651c6 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -9,6 +9,67 @@
     },
     "files.associations": {
         "ostream": "cpp",
-        "iostream": "cpp"
+        "iostream": "cpp",
+        "cctype": "cpp",
+        "clocale": "cpp",
+        "cmath": "cpp",
+        "cstdarg": "cpp",
+        "cstddef": "cpp",
+        "cstdio": "cpp",
+        "cstdlib": "cpp",
+        "cstring": "cpp",
+        "ctime": "cpp",
+        "cwchar": "cpp",
+        "cwctype": "cpp",
+        "array": "cpp",
+        "atomic": "cpp",
+        "bit": "cpp",
+        "*.tcc": "cpp",
+        "bitset": "cpp",
+        "chrono": "cpp",
+        "codecvt": "cpp",
+        "compare": "cpp",
+        "concepts": "cpp",
+        "condition_variable": "cpp",
+        "cstdint": "cpp",
+        "deque": "cpp",
+        "list": "cpp",
+        "map": "cpp",
+        "set": "cpp",
+        "unordered_map": "cpp",
+        "unordered_set": "cpp",
+        "vector": "cpp",
+        "exception": "cpp",
+        "algorithm": "cpp",
+        "functional": "cpp",
+        "iterator": "cpp",
+        "memory": "cpp",
+        "memory_resource": "cpp",
+        "numeric": "cpp",
+        "optional": "cpp",
+        "random": "cpp",
+        "ratio": "cpp",
+        "string": "cpp",
+        "string_view": "cpp",
+        "system_error": "cpp",
+        "tuple": "cpp",
+        "type_traits": "cpp",
+        "utility": "cpp",
+        "fstream": "cpp",
+        "initializer_list": "cpp",
+        "iomanip": "cpp",
+        "iosfwd": "cpp",
+        "istream": "cpp",
+        "limits": "cpp",
+        "mutex": "cpp",
+        "new": "cpp",
+        "ranges": "cpp",
+        "sstream": "cpp",
+        "stdexcept": "cpp",
+        "stop_token": "cpp",
+        "streambuf": "cpp",
+        "thread": "cpp",
+        "cinttypes": "cpp",
+        "typeinfo": "cpp"
     }
 }
\ No newline at end of file
diff --git a/grammar/bfe.g4 b/grammar/bfe.g4
index ed58f2f..b1d0e36 100644
--- a/grammar/bfe.g4
+++ b/grammar/bfe.g4
@@ -74,9 +74,9 @@ LOOPEND:']';
 GRPSTART:'(';
 GRPEND:')';
 NUMBER: [0-9]+;
-INPUT: '?';
+INPUT: ',';
 OUTPUT: '.';
 DEC: '-';
 INC: '+';
-LEFT: '>';
-RIGHT: '<';
+LEFT: '<';
+RIGHT: '>';
diff --git a/include/executeBFE.hpp b/include/executeBFE.hpp
new file mode 100644
index 0000000..48f7132
--- /dev/null
+++ b/include/executeBFE.hpp
@@ -0,0 +1,27 @@
+#include<string>
+#include<vector>
+#include<antlr4-common.h>
+#include "bfeParser.h"
+#include "bfeBaseVisitor.h"
+
+
+using namespace antlr4;
+using namespace antlrcpp;
+// using namespace std;
+class executeBGE: public bfeBaseVisitor{
+    private:
+        std::vector<char> memory;
+        int pointer=0;
+    public:
+        executeBGE() : bfeBaseVisitor(),memory(100) {
+        }
+        // Any visitProgram(bfeParser::ProgramContext*) override;
+        Any visitNumberedStmt(bfeParser::NumberedStmtContext*) override;
+        Any visitPtrIncr(bfeParser::PtrIncrContext *ctx) override;
+        Any visitPtrDecr(bfeParser::PtrDecrContext *ctx) override;
+        Any visitPtrRight(bfeParser::PtrRightContext *ctx) override;
+        Any visitPtrLeft(bfeParser::PtrLeftContext *ctx) override;
+        Any visitInputStmt(bfeParser::InputStmtContext *ctx) override;
+        Any visitOutputStmt(bfeParser::OutputStmtContext *ctx) override;
+        Any visitLoopStmt(bfeParser::LoopStmtContext *ctx) override;
+};
\ No newline at end of file
diff --git a/samples/group.bfe b/samples/group.bfe
index 8160e0e..0b88f87 100644
--- a/samples/group.bfe
+++ b/samples/group.bfe
@@ -1,2 +1,4 @@
-//should print ++++++
-(+2)3
\ No newline at end of file
+//should print AAA
+(+65>)3
+<<<
+(.>)3
\ No newline at end of file
diff --git a/src/executeBFE.cpp b/src/executeBFE.cpp
new file mode 100644
index 0000000..92d5dc6
--- /dev/null
+++ b/src/executeBFE.cpp
@@ -0,0 +1,57 @@
+#include<iostream>
+#include<vector>
+#include<string>
+#include <antlr4-common.h>
+#include "bfeParser.h"
+#include "bfeBaseVisitor.h"
+#include "executeBFE.hpp"
+
+
+using namespace antlr4;
+using namespace antlrcpp;
+using namespace std::__cxx11;
+
+Any executeBGE::visitNumberedStmt(bfeParser::NumberedStmtContext *ctx){
+    int num = stoi(ctx->NUMBER()->getText());
+    for(int i=0;i<num;i++){
+        ctx->stmt()->accept(this);
+    }
+    return Any();
+}
+
+Any executeBGE::visitPtrIncr(bfeParser::PtrIncrContext *ctx){
+    memory[pointer]++;
+    return Any();
+}
+
+Any executeBGE::visitPtrDecr(bfeParser::PtrDecrContext *ctx){
+    memory[pointer]--;
+    return Any();
+}
+
+Any executeBGE::visitPtrRight(bfeParser::PtrRightContext *ctx){
+    pointer++;
+    return Any();
+}
+
+Any executeBGE::visitPtrLeft(bfeParser::PtrLeftContext *ctx){
+    pointer--;
+    return Any();
+}
+
+Any executeBGE::visitInputStmt(bfeParser::InputStmtContext *ctx){
+    std::cin>>memory[pointer];
+    return Any();
+}
+
+Any executeBGE::visitOutputStmt(bfeParser::OutputStmtContext *ctx){
+    std::cout<<memory[pointer];
+    return Any();
+}
+
+Any executeBGE::visitLoopStmt(bfeParser::LoopStmtContext *ctx){
+    while(memory[pointer]){
+        ctx->statements()->accept(this);
+    }
+    return Any();
+}
\ No newline at end of file
diff --git a/src/main.cpp b/src/main.cpp
index 17b93c3..afda098 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -5,6 +5,7 @@
 #include "bfeLexer.h"
 #include "bfeParser.h"
 #include "toBFListener.hpp"
+#include "executeBFE.hpp"
 
 
 using namespace antlr4;
@@ -25,8 +26,10 @@ int main(int argc, const char *argv[])
     bfeParser parser(&tokens);
 
     tree::ParseTree *tree = parser.program();
-    toBFListener listener;
-    tree::ParseTreeWalker::DEFAULT.walk(&listener, tree);
+    // toBFListener listener;
+    // tree::ParseTreeWalker::DEFAULT.walk(&listener, tree);
 
+    executeBGE* visitor = new executeBGE();
+    auto resultAny = visitor->visit(tree);
     return 0;
 }
\ No newline at end of file