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2014-08-25T10:46:00+03:00
15¹=(......5)
15²=(......5)  =>15²⁰¹³=(......5)

16¹=(.......6)
16²=(.......6) =>16²⁰¹⁴=(.......6)

15²⁰¹³ +16²⁰¹⁴=(.......5)+(......6)=(........1)
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