diff --git a/main/main.cpp b/main/main.cpp
index 6d9c9b8..205182d 100644
--- a/main/main.cpp
+++ b/main/main.cpp
@@ -9,78 +9,98 @@ int main() {
     vkvm::initialize(0);
 
     Terminal terminal = Terminal();
+    terminal.init();
+    std::cout << terminal.getString() << std::endl;
 
         vkvm::registerEvent(vkvm::KeyDown, [&terminal]() {
             vkvm::KeyCode keycode = vkvm::getLastPressedKey();
             std::cout << keycode << std::endl;
 
-            if(((vkvm::KeyCode::ShiftLeft & 0xfff) == keycode) ||((vkvm::KeyCode::ShiftRight & 0xfff) == keycode)){
+            if((vkvm::KeyCode::ShiftLeft == keycode) ||(vkvm::KeyCode::ShiftRight == keycode)){
                 terminal.shiftpressed();
             }
 
-            if(((vkvm::KeyCode::Zero & 0xfff) <= keycode) && (keycode <= (vkvm::Nine & 0xfff))){
-                char ch = keycode - (vkvm::KeyCode::Zero & 0xfff) + '0';
+            if((vkvm::KeyCode::Zero <= keycode) && (keycode <=vkvm::Nine)){
+                char ch = keycode - vkvm::KeyCode::Zero + '0';
                 std::cout << ch << std::endl;
                 terminal.setString(ch);
                 vkvm::setText(terminal.getString());
+                std::cout << terminal.getString() << std::endl;
                 std::cout<< vkvm::getText()<< std::endl;
                 vkvm::callEvent(vkvm::EventType::RenderText);
             }
 
-            if(((vkvm::KeyCode::A & 0xfff) <= keycode) && (keycode <= (vkvm::KeyCode::Z & 0xfff))){
+            if((vkvm::KeyCode::A <= keycode) && (keycode <= vkvm::KeyCode::Z)){
                 int status = terminal.getstatus();
                 char ch;
                 if(status == 0){
-                     ch = keycode - (vkvm::KeyCode::A & 0xfff) + 'a';
+                     ch = keycode - vkvm::KeyCode::A + 'a';
                 }
                 else{
-                     ch = keycode - (vkvm::KeyCode::A & 0xfff) + 'A';
+                     ch = keycode - vkvm::KeyCode::A + 'A';
                 }
                 std::cout << ch << std::endl;
                 terminal.setString(ch);
                 vkvm::setText(terminal.getString());
+                std::cout << terminal.getString() << std::endl;
                 std::cout<< vkvm::getText()<< std::endl;
                 vkvm::callEvent(vkvm::EventType::RenderText);
             }
 
-            if((vkvm::KeyCode::Space & 0xfff) == keycode){
-            char ch =  keycode - (vkvm::KeyCode::Space & 0xfff) + ' ';
+            if(vkvm::KeyCode::Space == keycode){
+            char ch =  keycode - vkvm::KeyCode::Space + ' ';
             std::cout << ch << std::endl;
             terminal.setString(ch);
             vkvm::setText(terminal.getString());
+            std::cout << terminal.getString() << std::endl;
             std::cout<< vkvm::getText()<< std::endl;
             vkvm::callEvent(vkvm::EventType::RenderText);
             }
 
-            if((vkvm::KeyCode::Backspace & 0xfff) == keycode){
-                char ch =  keycode - (vkvm::KeyCode::Backspace & 0xfff) + ' ';
+            if(vkvm::KeyCode::Backspace == keycode){
+                char ch =  keycode - vkvm::KeyCode::Backspace + ' ';
                 std::cout << ch << std::endl;
                 terminal.subString();
                 vkvm::setText(terminal.getString());
+                std::cout << terminal.getString() << std::endl;
                 std::cout<< vkvm::getText()<< std::endl;
                 vkvm::callEvent(vkvm::EventType::RenderText);
             }
 
-            if((vkvm::KeyCode::Tab & 0xfff) == keycode){
-                char ch =  keycode - (vkvm::KeyCode::Tab & 0xfff) + ' ';
+            if(vkvm::KeyCode::Tab == keycode){
+                char ch =  keycode - vkvm::KeyCode::Tab + ' ';
                 for(int i = 0; i < 3; i++) {
                     std::cout << ch << std::endl;
                     terminal.setString(ch);
                 }
                 vkvm::setText(terminal.getString());
+                std::cout << terminal.getString() << std::endl;
                 std::cout<< vkvm::getText()<< std::endl;
                 vkvm::callEvent(vkvm::EventType::RenderText);
             }
 
-            if((vkvm::KeyCode::Enter & 0xfff) == keycode){
+            if(vkvm::KeyCode::Enter  == keycode){
                 char ch = '\n';
                 std::cout << ch << std::endl;
                 terminal.setString(ch);
                 vkvm::setText(terminal.getString());
+                std::cout << terminal.getString() << std::endl;
                 std::cout<< vkvm::getText()<< std::endl;
                 vkvm::callEvent(vkvm::EventType::RenderText);
             }
 
+            if(vkvm::KeyCode::Arrow_Left == keycode){
+                terminal.moveleft();
+                std::cout << terminal.getString() << std::endl;
+            }
+
+            if(vkvm::KeyCode::Arrow_Right == keycode){
+                terminal.moveright();
+                std::cout << terminal.getString() << std::endl;
+            }
+
+
+
 
         });
 
diff --git a/src/Terminal.cpp b/src/Terminal.cpp
index 1ad63ff..525644e 100644
--- a/src/Terminal.cpp
+++ b/src/Terminal.cpp
@@ -1,6 +1,7 @@
 //
 // Created by yukun on 29.11.19.
 //
+#include <iostream>
 #include "vkvm.hpp"
 #include "Terminal.h"
 
@@ -8,12 +9,41 @@ std::string Terminal::getString() {
     return s;
 }
 
+void Terminal::init(){
+    s = s + cursor;
+}
+
 void Terminal::setString(char c) {
-    s = s + c;
+//    s.erase(s.end() - 1);
+//    s = s + c + cursor;
+    int i = s.find(cursor);
+    std::cout << i << std::endl;
+    std::cout<< s.length() -1 <<std::endl;
+    if(i < s.length() -1 ){
+        s= s + s[s.length() - 1];
+        int l = s.length() - 1;
+        for(; l > i + 1; l--){
+            s[l] = s[l-1];
+        }
+        s[i+1] = c;
+    }
+    else{
+        s = s + cursor;
+        std::cout << "else1 " + s << std::endl;
+        s[s.length()-2] = c;
+        std::cout << "else2 " + s << std::endl;
+
+    }
 }
 
 void Terminal::subString(){
-    s = s.substr(0, s.length() - 1);
+//    if(s.length() > 1)
+//    s.erase(s.end() - 1);
+//    s.erase(s.end() - 1);
+//    s = s + cursor;
+    int i = s.find(cursor);
+    s.erase(i-1, 1);
+
 }
 
 void Terminal::shiftpressed() {
@@ -30,3 +60,28 @@ int Terminal::getstatus() {
     return status;
 }
 
+void Terminal::moveleft(){
+    int i = s.find(cursor);
+    if(i > 0){
+        char c = s[i-1];
+        s[i-1] = cursor;
+        s[i] = c;
+    }
+}
+
+void Terminal::moveright() {
+    int i = s.find(cursor);
+    if(i < (s.length() - 1)){
+        char c = s[i+1];
+        s[i+1] = cursor;
+        s[i] = c;
+    }
+}
+
+void Terminal::movedown() {
+
+}
+
+void Terminal::moveup() {
+
+}
diff --git a/src/Terminal.h b/src/Terminal.h
index 7ad1ed7..2ef05ae 100644
--- a/src/Terminal.h
+++ b/src/Terminal.h
@@ -9,15 +9,20 @@
 
 class Terminal {
 public:
+    void init();
     std::string getString();
     void setString(char c);
     void subString();
     void shiftpressed();
     void shiftup();
     int getstatus();
-
+    void moveleft();
+    void moveright();
+    void moveup();
+    void movedown();
 private:
         std::string s="";
         int status = 0;
+        char cursor = -127;
 };
 #endif //TERMINAL_TERMINAL_H