<?php for ($x = 1; $x < 10; $x++) { $increase = $x * $x; echo "$x * $x = $increase.\n";}
Standard input is empty
1 * 1 = 1. 2 * 2 = 4. 3 * 3 = 9. 4 * 4 = 16. 5 * 5 = 25. 6 * 6 = 36. 7 * 7 = 49. 8 * 8 = 64. 9 * 9 = 81.
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