Regex - Matching two numbers before a certain string -

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how match 2 numbers before word "min"

sample string:

15min

i want match:

15

edit:

i've tried matching pattern, how 2 characters before?

\w*((?i)min(?-i))\w*

here's regex extracts first number in string:

^\d*(\d+).*$

if number must in front of min, can write as:

^\d*(\d+)min.*$

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