diff --git a/src/backends/lua/luaexpression.cpp b/src/backends/lua/luaexpression.cpp
--- a/src/backends/lua/luaexpression.cpp
+++ b/src/backends/lua/luaexpression.cpp
@@ -69,7 +69,6 @@
 {
     output.replace(command(), QLatin1String(""));
     output.replace(QLatin1String("return"), QLatin1String(""));
-    output.replace(QLatin1String(">"), QLatin1String(""));
     output = output.trimmed();
 
     qDebug() << "final output of the command " <<  command() << ": " << output << endl;
diff --git a/src/backends/lua/luasession.h b/src/backends/lua/luasession.h
--- a/src/backends/lua/luasession.h
+++ b/src/backends/lua/luasession.h
@@ -60,6 +60,9 @@
     QProcess* m_process;
     LuaExpression* m_currentExpression;
     QString m_output;
+    QString m_tmpline;
+    QStringList m_commands;
+    bool m_isFirstReadedLine;
 };
 
 #endif /* _LUASESSION_H */
diff --git a/src/backends/lua/luasession.cpp b/src/backends/lua/luasession.cpp
--- a/src/backends/lua/luasession.cpp
+++ b/src/backends/lua/luasession.cpp
@@ -31,7 +31,8 @@
 LuaSession::LuaSession( Cantor::Backend* backend) :
     Session(backend),
     m_process(0),
-    m_currentExpression(0)
+    m_currentExpression(0),
+    m_isFirstReadedLine(true)
 {
 }
 
@@ -59,7 +60,7 @@
     m_process->start();
     m_process->waitForStarted();
     m_process->waitForReadyRead();
-
+    
     // we need this for tab completion
     m_L = luaL_newstate();
     luaL_openlibs(m_L);
@@ -69,18 +70,18 @@
 }
 
 void LuaSession::readIntroMessage()
-{
+{   
     while(m_process->bytesAvailable()) {
         m_output.append(QString::fromLocal8Bit(m_process->readLine()));
     }
 
-    if(!m_output.isEmpty() && m_output.trimmed().endsWith(QLatin1String(">"))) {
-        qDebug() << " reading the intro message " << m_output ;
+    if(!m_output.isEmpty() && m_output.endsWith(QLatin1String("> "))) {
+        qDebug() << " reading the intro message " << m_output;
         m_output.clear();
 
         disconnect(m_process, SIGNAL(readyReadStandardOutput()), this , SLOT(readIntroMessage()));
-                connect(m_process, SIGNAL(readyReadStandardOutput()), this, SLOT(readOutput()));
-                connect(m_process, SIGNAL(readyReadStandardError()), this, SLOT(readError()));
+        connect(m_process, SIGNAL(readyReadStandardOutput()), this, SLOT(readOutput()));
+        connect(m_process, SIGNAL(readyReadStandardError()), this, SLOT(readError()));
     }
 }
 
@@ -88,20 +89,67 @@
 {
     /*
      * parse the output
-     * clear all the garbage
+     * clear all the garbage, like our input commands, appearing in output (lua interpreter problem)
      * set it as output
     */
-    // keep reading till the output ends with '>'.
-    // '>' marks the end of output for a particular command;
+    // We do it here, instead parseOutput(), because we don't know, when output ends
+    // without input commands counting
+    bool isReadLastPrompt = false;
     while(m_process->bytesAvailable()) {
-            m_output.append(QString::fromLocal8Bit(m_process->readLine()));
+        // work only with ended line (with '\n')
+        QString newLine =QString::fromLocal8Bit(m_process->readLine());
+        if (!m_commands.empty() && !newLine.contains(QLatin1Char('\n')))
+            {
+            m_tmpline += newLine;
+            return;
+            }
+        newLine = m_tmpline + newLine;
+        m_tmpline.clear();
+        
+        if (m_commands.empty())
+            isReadLastPrompt = newLine == QLatin1String("> ");
+        if (m_isFirstReadedLine)
+            {
+            if (m_commands.empty())
+                {
+                if (!isReadLastPrompt)
+                    m_output.append(newLine);
+                }
+            else
+                {
+                if (m_commands[0] == newLine || QLatin1String("> ") + m_commands[0] == newLine)
+                    m_commands.removeFirst();
+                else
+                    m_output.append(newLine);
+                }
+            }
+        else
+            {
+            if (m_commands.empty())
+                {
+                if (!isReadLastPrompt)
+                    m_output.append(newLine);
+                }
+            else 
+                {
+                bool isOurInputCommand = 
+                    QLatin1String("> ") + m_commands[0] == newLine ||
+                    QLatin1String(">> ") + m_commands[0] == newLine;
+                if (isOurInputCommand)
+                    m_commands.removeFirst();
+                else
+                    m_output.append(newLine);
+                }
+            }
+        m_isFirstReadedLine = false;
     }
-    if(m_currentExpression && !m_output.isEmpty() && m_output.trimmed().endsWith(QLatin1String(">"))) {
+    if(m_currentExpression && m_commands.empty() && isReadLastPrompt) {
         // we have our complete output
-        // clean the output and parse it and clear m_output;
+        // clean the output and parse it and clear m_output and m_tmpline;
         m_currentExpression->parseOutput(m_output);
         m_output.clear();
-
+        m_tmpline.clear();
+        m_isFirstReadedLine = true;
     }
 
 }
@@ -114,6 +162,9 @@
     {
         return;
     }
+    m_output.clear();
+    m_tmpline.clear();
+    m_isFirstReadedLine = true;
     m_currentExpression->parseError(error);
 }
 
@@ -155,6 +206,10 @@
     */
     QString command = currentExpression->command();
 
+    m_commands = command.split(QLatin1String("\n"));
+    for(auto i = 0; i < m_commands.size(); i++)
+        m_commands[i].append(QLatin1Char('\n'));
+
     command += QLatin1String("\n");
 
     qDebug() << "final command to be executed " << command << endl;