[1,23,29,31,37,41,43,47,53,59,61,67,71,73,79,83,
89,97,101,103,107,109,113,127,131,137,139,149,151,
157,163,167,173,179,181,191,193,197,199,211,223,
227,229,233,239,241,251,257,263,269,271,277,281,
283,293,307,311,313,317,331,337,347,349,353,359,
367,373,379,383,389,397,401,409,419,421,431,433,
439,443,449,457,461,463,467,479,487,491,499]
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