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

int compare_int(const void *a, const void *b) {
    return *(int*)a - *(int*)b;
}

int main(void) {
    int len,arraylen;
    int array[1001];
    double answer;

    scanf("%d", &len);
    for(int count=0; count<=len; count++) {
        scanf("%d", &array[count]);
    }

    arraylen = sizeof array / sizeof array[0];
    printf("array length is %d", arraylen);

    qsort(array, arraylen, sizeof(int), compare_int);
    if(arraylen % 2 == 1) {
        printf("%d", array[arraylen/2+1]);
    } else {
        printf("%d", (array[arraylen/2] + array[arraylen/2+1])/2);
    }
    return 0;
}