new i, j, key, skey;

for (i = 1; i < admins_count; i++) {
    key = admins_levels[i];
    skey = admins_ids[i];

    for (j = i - 1; j >= 0 && admins_levels[j] > key; j--) {
        admins_levels[j + 1] = admins_levels[j];
        admins_ids[j + 1] = admins_ids[j];
    }

    admins_levels[j + 1] = key;
    admins_ids[j + 1] = skey;
}