@vlady;
This is my alternative, where the requested items (3 and 6 in your example) are picked from the sentence in cell C5.
You can have as much as you want, such as it may be; "Please give me the data of 3,6,4,7"
items in the sentence must be seperated with a comma as seen above.
The formula in cell C6 and screen shot is given below;
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If you need only the first sentences without the question numbers at the beginning, you can use this;
The screen shot for the first formula is;
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