;Task:
Take a &nbsp; [[wp:Natural_number|Natural Number]] &nbsp; in a given base and return the sum of its digits:
:* &nbsp; '''1'''<sub>10</sub> &nbsp; &nbsp; &nbsp;          &nbsp; sums to &nbsp; '''1'''
:* &nbsp; '''1234'''<sub>10</sub>     &nbsp; sums to &nbsp; '''10'''
:* &nbsp; '''fe'''<sub>16</sub> &nbsp; &nbsp;        &nbsp; sums to &nbsp; '''29'''
:* &nbsp; '''f0e'''<sub>16</sub> &nbsp;       &nbsp; sums to &nbsp; '''29'''
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