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+Reminder of game of life rules:
+    -Any live cell with fewer than two live neighbors dies, as if by underpopulation.
+    -Any live cell with two or three live neighbors lives on to the next generation.
+    -Any live cell with more than three live neighbors dies, as if by overpopulation.
+    -Any dead cell with exactly three live neighbors becomes a live cell, as if by reproduction.
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