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-rw-r--r--advent-of-code/2023/01/1.rkt2
1 files changed, 1 insertions, 1 deletions
diff --git a/advent-of-code/2023/01/1.rkt b/advent-of-code/2023/01/1.rkt
index 57d366d..8953e84 100644
--- a/advent-of-code/2023/01/1.rkt
+++ b/advent-of-code/2023/01/1.rkt
@@ -8,7 +8,7 @@
(define (extract-number line)
(define number-list (filter char-numeric? (string->list line)))
- (set! number-list (map (lambda (c)
+ (set! number-list (map (λ (c)
(string->number (list->string (list c))))
number-list))
(+ (last number-list) (* 10 (car number-list))))