#include <iostream>
using namespace std;
int32_t average(int32_t a, int32_t b) {
return ((a < 0) ^ (b < 0))
? ((a + b) / 2)
: (
((a < 0) ^ (a < b))
? (a + (b - a) / 2)
: (b + (a - b) / 2)
);
}
int main() {
// your code goes here
return 0;
}
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