for (i = 1; i <= n; i++) if ( ③ ) { pos[i] = RIGHT; tmp = ④ ; if (tmp < ans) ans = tmp; ⑤ ; } return ans; }
return 0; }
int main() {
int i;
scanf("%d", &n);
for (i = 1; i <=n; i++) { scanf("%d", &time[i]); pos[i] = RIGHT; }
printf("%d\n", go(RIGHT_TO_LEFT)); return 0; }

