P6JAIBORAEOHVPTGIJ3ERSUFZGYX7VFKWADXEAIQTFETFBCBU2SAC
V322L3HFW3BKXLV5WOL3EHTDDFYNVKOC2PJLUHEDR5XNVJXK3C6AC
DBMXGY4DEQNQQ2G3B66DMPIVNUOLHAJ2QJ6BBNPASUUTTHXLPV2AC
O4KDCA5IHMJJEJZIYAMD3TDFQ2U6Z6VXE7JWSFFTOCBZ6S2IVALAC
ISQOZXW25L6PGVEM5UY2URQI46L2CUAPFJOTT6PMABBAJ6PLCTFAC
G5A7WNRVGFKY2ZBULA4LKS5F7X4VTCMNOKLQCTGKSCKBKE26E23QC
} // namespace std
namespace Arith {
using std::abs, std::copysign;
using std::cbrt;
using std::cos, std::sin;
using std::exp;
using std::copysign, std::fabs;
using std::isnan1;
using std::pow;
using std::sqrt;
// initializes all elts to zero
// initializes all elements to zero
} // namespace stdnamespace Arith {
using std::max;
using std::min;