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var findSubstringInWraproundString = function (p) {
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  const dp = Array(26).fill(0);
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  const origin = "a".charCodeAt(0);
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  let count = 0;
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  for (let index = 0; index < p.length; index++) {
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    const code = p.charCodeAt(index);
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    const preCode = p.charCodeAt(index - 1);
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    const pos = code - origin;
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    count = code - preCode === 1 || preCode - code === 25 ? count + 1 : 1;
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    dp[pos] = Math.max(count, dp[pos]);
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  }
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  return dp.reduce((total, count) => total + count);
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};