gistfile1.txt

#lang racket

(define lines 
  (list "hootehutt 23 hoethoet 4"
        "abc 9 thuoteh 9"))

(define (maybe-numify s)
  (match (regexp-match #px"[0-9]+" s)
    [#f s]
    [else (string->number s)]))

(for/list ([l lines])
  (map maybe-numify (string-split l)))