
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
The effective period for one unit of blood is 70 days. Yasin donated one unit of blood on January 1st. Find the date on which the effective period for his donated blood expires.

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