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First solution in Clear category for Restricted Sum by Krzysztof_Dziedzic
def Add(data1, Roz):
result = 0
if Roz > 0:
result += data1[Roz - 1]
result += Add(data1, Roz - 1)
return result
def checkio(data):
Roz = len(data)
return Add(data, Roz)
Oct. 27, 2016