adding pillar markdowns

Author: neonerz

python/HOC2023/pillar2.md

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+### @flyoutOnly true
+### @hideIteration false
+### @explicitHints true
+
+# Pillar2
+
+## Step 1
+# Yellow Pillar
+
+Use code to cross the void and reach the Yellow Pillar. You have access to two functions. `agent_move()` and `agent_place()`
+
+The `agent_move()` function takes one parameter which is a string. It defines what direction the agent should move in.
+
+Valid directions are: 
+- `forward`
+- `back`
+- `up`
+- `down`
+
+The `agent_place()` function takes one parameter which is a string. It defines what direction the agent should move in.
+
+Valid directions are: 
+- `up`
+- `down`
+
+```python
+# CODE EXAMPLE - YOU CAN NOT EDIT HERE
+# RUN IT TO SEE WHAT HAPPENS
+
+agent_move("forward")
+agent_place("down")
+agent_move("forward")
+agent_place("down")
+agent_move("forward")
+agent_place("down")
+```
+
+---
+
+## Step 2
+# Activity:
+
+Build a bridge to reach the yellow pillar. The pillar is 8 blocks away.
+
+```python
+# code here
+
+agent_move("forward")
+agent_place("down")
+agent_move("forward")
+agent_place("down")
+agent_move("forward")
+agent_place("down")
+```
+
+---
+

python/HOC2023/pillar3.md

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+### @flyoutOnly true
+### @hideIteration false
+### @explicitHints true
+
+# Pillar3
+
+## Step 1
+# Green Pillar
+
+Use code to cross the void and reach the Green Pillar. You have access to two functions. `agent_move()` and `agent_place()`
+
+The `agent_move()` function takes one parameter which is a string. It defines what direction the agent should move in.
+
+Valid directions are: 
+- `forward`
+- `back`
+- `up`
+- `down`
+
+The `agent_place()` function takes one parameter which is a string. It defines what direction the agent should move in.
+
+Valid directions are: 
+- `up`
+- `down`
+
+```python
+# CODE EXAMPLE - YOU CAN NOT EDIT HERE
+# RUN IT TO SEE WHAT HAPPENS
+
+agent_move("forward")
+agent_place("down")
+agent_move("forward")
+agent_place("down")
+agent_move("forward")
+agent_place("down")
+```
+
+---
+
+## Step 2
+# Pro Tip:
+
+Use a `for` loop to do one or more actions multiple times.
+
+```python
+# CODE EXAMPLE - YOU CAN NOT EDIT HERE
+# RUN IT TO SEE WHAT HAPPENS
+    
+for i in range(3):
+    agent_move("forward")
+    agent_place("down")
+```
+
+---
+
+## Step 3
+# Activity:
+
+Build a bridge to reach the top of the green pillar.
+
+```python
+# code here
+    
+for i in range(3):
+    agent_move("forward")
+    agent_place("down")
+```
+
+---
+

python/HOC2023/pillar4.md

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+### @flyoutOnly true
+### @hideIteration false
+### @explicitHints true
+
+# Pillar4
+
+## Step 1
+# Attic Tutorial (Green Path Part 2)
+
+Now that the trapdoor is open, you'll need to move the Agent up two blocks to set it free. Use the `agent.move()` function to move the Agent up.
+
+The `agent.move()` function takes one parameter that defines what direction it should move in.
+
+Valid directions are: 
+- `forward`
+- `back`
+- `left`
+- `right`
+- `up`
+- `down`
+
+```python
+# CODE EXAMPLE - YOU CAN NOT EDIT HERE
+# RUN IT TO SEE WHAT HAPPENS
+
+# make the agent move up one block
+
+agent.move("up")
+```
+
+---
+
+## Step 2
+# Activity:
+
+Help the Agent out of the floor. Move it up two blocks to get it out.
+
+The included code below is broken. Can you fix it? Run the code to see what happens, then debug it by editing it to the correct solution.
+
+```python
+# code here
+
+agent.move("up")
+```
+
+---
+