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

int cmp(const void* a, const void* b) {
    return *(int*)a > *(int*)b;
}

int main() {
    int n, a[10005];
    while (scanf("%d", &n) != EOF) {
        if (n == 0) break;
        for (int i = 0; i < n; i++) {
            scanf("%d", &a[i]);
        }
        qsort(a, n, sizeof(int), cmp);
        if (n % 2 == 1) {
            printf("%d\n", a[(n - 1) / 2]);
        } else {
            printf("%d\n", (a[n / 2 - 1] + a[n / 2]) / 2);
        }
    }
    return 0;
}