diff --git a/RoboMission_line_demo.blockly b/RoboMission_line_demo.blockly
index d735bed9836cc59b12f2c81372b1e89cfb0e44f4..2fae82f37350bf6cd7ea0cfe746e034846168c15 100644
--- a/RoboMission_line_demo.blockly
+++ b/RoboMission_line_demo.blockly
@@ -57,13 +57,48 @@
                                       <block type="controls_if" id="=|@=3O|)YL)3oiQO:%HK">
                                         <mutation elseif="1" else="1"/>
                                         <value name="IF0">
+                                          <block type="import_function_return" id="zNKHD:D@2yBLa?tuJGp-">
+                                            <mutation parentId="qvOW30^l!U9[0o}9H)#f" parentFilename="lib/line.py"/>
+                                            <field name="name">is_endline</field>
+                                            <data>{"id":"qvOW30^l!U9[0o}9H)#f","filename":"lib/line.py"}</data>
+                                          </block>
+                                        </value>
+                                        <statement name="DO0">
+                                          <block type="encodermotor_set_values" id="`LR/@E5MHa@m,e^zgH%|">
+                                            <mutation syncBlocks="1"/>
+                                            <field name="instance_name_0">vv6o.D]}g0#Ew7C~xfQ1-7dv9-J9W4.H3uoY}xp[W</field>
+                                            <field name="direction_0">Motor.CCW</field>
+                                            <field name="instance_name_1">vv6o.D]}g0#Ew7C~xfQ1-[rGZ27?2t_Go?A6:UHM*</field>
+                                            <field name="direction_1">Motor.CW</field>
+                                            <value name="speed">
+                                              <shadow type="motor_number" id="B-HOk*q?^)ZwRluG`+%u">
+                                                <field name="MOTOR_NUM">512</field>
+                                              </shadow>
+                                            </value>
+                                            <value name="distance">
+                                              <shadow type="math_number" id="C^Rv{K=b|NZg45/J)6n;">
+                                                <field name="NUM">161</field>
+                                              </shadow>
+                                            </value>
+                                            <next>
+                                              <block type="util_wait_until" id="[gfi-m|`ja},r(c?V6X7">
+                                                <value name="value">
+                                                  <block type="encodermotor_position_read" id="wTKWwwl+r!C[-yN!2z39">
+                                                    <field name="instance_name">vv6o.D]}g0#Ew7C~xfQ1-7dv9-J9W4.H3uoY}xp[W</field>
+                                                  </block>
+                                                </value>
+                                              </block>
+                                            </next>
+                                          </block>
+                                        </statement>
+                                        <value name="IF1">
                                           <block type="import_function_return" id="aVVaE+cL3q|rDyviiQLV">
                                             <mutation parentId="RE;I#E!r_ysU(XAFv{c}" parentFilename="lib/line.py"/>
                                             <field name="name">is_white</field>
                                             <data>{"id":"RE;I#E!r_ysU(XAFv{c}","filename":"lib/line.py"}</data>
                                           </block>
                                         </value>
-                                        <statement name="DO0">
+                                        <statement name="DO1">
                                           <block type="controls_if" id="4]LYz/pXH@O+g7hWfWT%">
                                             <mutation elseif="0" else="1"/>
                                             <value name="IF0">
@@ -155,41 +190,6 @@
                                             </statement>
                                           </block>
                                         </statement>
-                                        <value name="IF1">
-                                          <block type="import_function_return" id="zNKHD:D@2yBLa?tuJGp-">
-                                            <mutation parentId="qvOW30^l!U9[0o}9H)#f" parentFilename="lib/line.py"/>
-                                            <field name="name">is_endline</field>
-                                            <data>{"id":"qvOW30^l!U9[0o}9H)#f","filename":"lib/line.py"}</data>
-                                          </block>
-                                        </value>
-                                        <statement name="DO1">
-                                          <block type="encodermotor_set_values" id="`LR/@E5MHa@m,e^zgH%|">
-                                            <mutation syncBlocks="1"/>
-                                            <field name="instance_name_0">vv6o.D]}g0#Ew7C~xfQ1-7dv9-J9W4.H3uoY}xp[W</field>
-                                            <field name="direction_0">Motor.CCW</field>
-                                            <field name="instance_name_1">vv6o.D]}g0#Ew7C~xfQ1-[rGZ27?2t_Go?A6:UHM*</field>
-                                            <field name="direction_1">Motor.CW</field>
-                                            <value name="speed">
-                                              <shadow type="motor_number" id="B-HOk*q?^)ZwRluG`+%u">
-                                                <field name="MOTOR_NUM">512</field>
-                                              </shadow>
-                                            </value>
-                                            <value name="distance">
-                                              <shadow type="math_number" id="C^Rv{K=b|NZg45/J)6n;">
-                                                <field name="NUM">161</field>
-                                              </shadow>
-                                            </value>
-                                            <next>
-                                              <block type="util_wait_until" id="[gfi-m|`ja},r(c?V6X7">
-                                                <value name="value">
-                                                  <block type="encodermotor_position_read" id="wTKWwwl+r!C[-yN!2z39">
-                                                    <field name="instance_name">vv6o.D]}g0#Ew7C~xfQ1-7dv9-J9W4.H3uoY}xp[W</field>
-                                                  </block>
-                                                </value>
-                                              </block>
-                                            </next>
-                                          </block>
-                                        </statement>
                                         <statement name="ELSE">
                                           <block type="variables_set" id="Z*LZnGctJdLP]SZ=^T+m">
                                             <field name="VAR" id="s`)JpS~a2Z(f+qR$zzzs">success</field>
diff --git a/RoboMission_line_demo.py b/RoboMission_line_demo.py
index e9335390c85afd5c54ec5a4a3f6a397abd98c7ad..d013a8d2372a93cd47f595b017bfe70b9bff0a31 100644
--- a/RoboMission_line_demo.py
+++ b/RoboMission_line_demo.py
@@ -41,7 +41,15 @@ while True:
     read_line_sensors()
     if False:
         print_line_info()
-    if is_white():
+    if is_endline():
+        TXT_M_M1_encodermotor.set_speed(int(512), Motor.CCW)
+        TXT_M_M2_encodermotor.set_speed(int(512), Motor.CW)
+        TXT_M_M1_encodermotor.set_distance(int(161), TXT_M_M2_encodermotor)
+        while True:
+            if (not TXT_M_M1_encodermotor.is_running()):
+                break
+            time.sleep(0.010)
+    elif is_white():
         if True:
             TXT_M_M1_encodermotor.set_speed(int(512), Motor.CCW)
             TXT_M_M2_encodermotor.set_speed(int(512), Motor.CW)
@@ -64,14 +72,6 @@ while True:
                 if (not TXT_M_M1_encodermotor.is_running()):
                     break
                 time.sleep(0.010)
-    elif is_endline():
-        TXT_M_M1_encodermotor.set_speed(int(512), Motor.CCW)
-        TXT_M_M2_encodermotor.set_speed(int(512), Motor.CW)
-        TXT_M_M1_encodermotor.set_distance(int(161), TXT_M_M2_encodermotor)
-        while True:
-            if (not TXT_M_M1_encodermotor.is_running()):
-                break
-            time.sleep(0.010)
     else:
         success = follow_line_step(512, 500)