#include <stdio.h>
#include <stdlib.h>

int main(void) {
  long long int n = 4614256656552045848LL;
  double* p = (double*) &n;
  printf("π = %f\n", *p);
  long long int m = *p*2;
  printf("%lld\n", m );
  return EXIT_SUCCESS;
}