$Yanıt: B$
$1.$ kutuya $1,2$ no'lu
$2.$ kutuya $1,2,3,4$ no'lu
$3.$ kutuya $1,2,3,4,5,6$ no'lu
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$13.$ kutuya $1,2,3,4,5,6,...,25,26$ no'lu
$14.$ kutuya $1,2,3,4,5,6,...,25,26$ no'lu
$15.$ kutuya $1,2,3,4,5,6,...,25,26$ no'lu
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$26.$ kutuya $1,2,3,4,5,6,...,25,26$ no'lu toplar konulabilir. $1.$ kutudan başlayalım. $2.3.4.5.....14.14.13.....2=14!.14!$bulunur.