Japanese Zodiacs

#include <stdio.h>
#include <stdlib.h>
int main(void) {
  struct list {
    char name[20];
    struct list *prev, *next;
  } zodiac[] = {{.name = "boar"},   {.name = "rat"},     {.name = "ox"},
                {.name = "tiger"},  {.name = "rabbit"},  {.name = "dragon"},
                {.name = "snake"},  {.name = "horse"},   {.name = "sheep"},
                {.name = "monkey"}, {.name = "rooster"}, {.name = "dog"}};
  size_t size = sizeof(zodiac) / sizeof(zodiac[0]);
  for (size_t i = 0; i < size; ++i) {
    zodiac[i].next = &zodiac[(i + 1) % size];
    zodiac[(i + 1) % size].prev = &zodiac[i];
  }
  struct list *current = &zodiac[0];
  printf("This year is [%s] in oriental zodiac.\n", current->name);
  for (int i = 0; i < 5; ++i) {
    printf("Please enter how many years to move =>");
    int move;
    if (scanf("%d", &move) != 1) {
      exit(1);
    }
    move %= size;
    move += size;
    move %= size;
    for (int j = 0; j < move; ++j) {
      current = current->next;
    }
    printf("This year is [%s] in oriental zodiac.\n", current->name);
  }
  puts("Finish.");
}