#include <vector>

#define rdtscl(low) \
     __asm__ __volatile__ ("rdtsc" : "=a" (low) : : "edx")

int main() {
  std::vector<char> x;
  unsigned int i,j;
  unsigned long a,b,min;
  for (i=0; i<10000; ++i)
    x.push_back(i);

  for (i=0; i<10000; ++i)
    x[i]=i;

  rdtscl(a);
  for (i=0; i<10000; ++i)
    x[i]=i-1;
  rdtscl(b);
  min=b-a;
  for (j=1; j<10; ++j) {
    rdtscl(a);
    for (i=0; i<10000; ++i)
      x[i]=i-1;
    rdtscl(b);
    if (b-a<min) min=b-a;
  }
  printf("%lu cycles\n",min);

}