SOLUTION:
FORTYÂ in all. The calendar would require:
- 31 blocks for the numbers 1 through 31
- 2 “split date” blocks reading ”23/30″ and “24/31″ (for 31-day months beginning on Friday, or 30- or 31-day months beginning on Saturday, see sample below)
- 7 “blank” blocks (all would be used in a non-leap-year February)

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