Add solution for Challenge 3 by mick4711 #24

Job	Run time
Validate Submission Security	5s
test-submissions (challenge-2)	21s
test-submissions (challenge-4)	12s
test-submissions (challenge-3)	21s
test-submissions (challenge-9)	12s
test-submissions (challenge-7)	12s
test-submissions (challenge-5)	12s
test-submissions (challenge-1)	20s
test-submissions (challenge-11)	15s
test-submissions (challenge-8)	11s
test-submissions (challenge-6)	12s
test-submissions (challenge-10)	12s
test-submissions (challenge-12)	13s
test-submissions (challenge-16)	14s
test-submissions (challenge-17)	11s
test-submissions (challenge-13)	14s
test-submissions (challenge-18)	14s
test-submissions (challenge-21)	12s
test-submissions (challenge-19)	14s
test-submissions (challenge-20)	13s
test-submissions (challenge-15)	15s
test-submissions (challenge-27)	12s
test-submissions (challenge-14)	11s
test-submissions (challenge-23)	13s
test-submissions (challenge-25)	14s
test-submissions (challenge-29)	12s
test-submissions (challenge-28)	14s
test-submissions (challenge-22)	15s
test-submissions (challenge-24)	12s
test-submissions (challenge-30)	11s
test-submissions (challenge-26)	14s
	6m 53s

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