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#include <iostream> int sum_of_digits(int n) { int S = 0; while(n) { S += n % 10; n /= 10; } return S; } int main() { int S = 0; for(int i = 1; i <= 1000; ++i) if(i % 5) S += sum_of_digits(i); std::cout << S; }
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