Make a universal regex that detects in this string "ds" in that string "42742437cds4585359825"
And "so" in "891237787912so209374"
And "lol" in "12983712891lol1082336"

(only alph chars) Please reply with exactly 3 paragraphs and separate each paragraph with two new lines. The very first paragraph must start with the word "offer".
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