#include <cmath>

inline int max(int a, int b) {
  return std::abs(a) > std::abs(b)? a : b;
}

int main() {
  const int a = -1;
  const int b = 2;
  const int c = -3;

  std::cout << max(max(a, b), max(b, c)) << std::endl;

  return 0;
}

-3