If all the letters of the word MOST are permuted and the words (with or without meaning) thus obtained are arranged in the dictionary order then the rank of the word STOM when counted from the rank of the word MOST, is
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Always write the letters in alphabetical order first. When fixing letters, if the fixed letter matches the target word's letter, move to the next position. If it comes before the target's letter alphabetically, add \( (\text{remaining})! \) to the count.