
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
A stratified sample of size 20 is drawn from a population with 40 kinds of grains, 10 kinds of vegetable oils, 30 kinds of animal foods, and 20 kinds of fruits and vegetables. Calculate the sum of the number of types of vegetable oils and fruits and vegetables drawn.

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