#include <stdio.h>

void testmat_(int *n, double *A);

int main()
{
  double data[] = { 1.0, 2.0, 3.0, 4.0,
                    5.0, 6.0, 7.0, 8.0,
                    9.0, 10.0, 11.0, 12.0,
                    13.0, 14.0, 15.0, 16.0 };
  int n = 4;

  testmat_(&n, data);

  return 0;
}