#include <stdio.h>

int reverseBits(int x) {
  return(x);
}

int main(int argc, char **argv) {
  int i,r;

  if (argc<2) {
    printf("You have to give me a number!\n");
    exit(1);
  }

  i = atoi(argv[1]);
  r = reverseBits(i);
  printf("Reverse of %d (%08x) is %d (%08x)\n",i,i,r,r);
  return(0);
}