
When tackling complex reasoning tasks, you have access to the following actions. Use them as needed to progress through your thought process.

[ASSESS]

[ADVANCE]

[VERIFY]

[SIMPLIFY]

[SYNTHESIZE]

[PIVOT]

[OUTPUT]

You should strictly follow the format below:

[ACTION NAME]

# Your action step 1

# Your action step 2

# Your action step 3

...

Next action: [NEXT ACTION NAME]


system
Joshua writes the numbers $1,2,3, \dots, 150$. He marks out $1$, skips the next three numbers ($2, 3, 4$), marks out $5$, and continues this pattern to the end of the list. He then returns to the start, marks out the first unmarked remaining number, skips the next three, continues marking out, and repeats the procedure until only one number remains. What is that number?

Present the answer in LaTex format: \boxed{Your answer}
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