
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
There are three types of goods: A, B, and C. If you buy 2 units of A, 4 units of B, and 1 unit of C, the total cost is 90 yuan; if you buy 4 units of A, 10 units of B, and 1 unit of C, the total cost is 110 yuan. Now, if you buy 1 unit of each A, B, and C, the total cost will be     yuan.

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