#include <stdio.h>
#include <assert.h>
#include <stdint.h>
 
inline uint16_t reverse(uint16_t v) {
  v = ((v >> 1) & 0x5555) | ((v & 0x5555) << 1); /* swap odd/even bits */
  v = ((v >> 2) & 0x3333) | ((v & 0x3333) << 2); /* swap bit pairs */
  v = ((v >> 4) & 0x0F0F) | ((v & 0x0F0F) << 4); /* swap nibbles */
  v = ((v >> 8) & 0x00FF) | ((v & 0x00FF) << 8); /* swap bytes */
  return v;
}
 
main() {
  uint16_t gf_t = 44;
  printf("%hu\n", reverse(gf_t));
  return 0;
}

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