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

struct memberList {
  char member[255];
  struct memberList * next;
};

int main(int argc, char ** argv) {
  char buf[1024];
  struct memberList * List = NULL;
  struct memberList * newMember;
  int totalMembers = 0;
  int selectedMember = 0;
  int i = 0;
  while (scanf("%s", buf) == 1) {
    newMember = (struct memberList*)calloc(sizeof(struct memberList), 1);
    strcpy(newMember->member, buf);
    newMember->next = List;
    List = newMember;
    totalMembers++;
  }
  srandom(time(0));
  selectedMember = random()%totalMembers;
  newMember = List;
  for (; i < selectedMember; i++, newMember = newMember->next);
  printf("%s", newMember->member);
  return 0;
}