
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

In the homework assignment to calculate the value of the expression

$$
2-3+4-5+6-7+8-9+10=
$$

Radek forgot to include two pairs of parentheses, resulting in a value that was 18 more than what he would have obtained if the parentheses were correctly included. Add parentheses in two different ways and determine what number Radek got and what number he should have gotten.

(M. Dillingerová)

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