
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 40 sets of CASIO cards, each set consisting of 5 cards in the order of C, A, S, I, O stacked from top to bottom. Now, these 40 sets of cards are stacked on top of each other from top to bottom. Then, the first card is discarded, the second card is placed at the bottom, the third card is discarded, the fourth card is placed at the bottom, and so on. This process continues until only one card remains.
(1) In the process described above, when only 88 cards remain, how many S cards have been discarded in total?
(2) Which card from which set is the last remaining card?

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