My group got 31 lockers open and 969 are left closed. Lockers 1, 4, 9, 16, 25, 36, 49, 64, 81, 100, 121, etc. are the ones to remain open. The 31 numbers are perfect squares, after that the numbers are not perfect and go over 1,000.
For example-
1. 2. 3. 4. 5. 6. 7. 8. 9. etc.
O, C, C, O, C, C, C, C, O, etc.
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