PY02009.py

T = int(input())
while T > 0:
    T -= 1
    n = int(input())
    myl = []
    while n > 0:
        n-=1
        k = int(input())
        myl.append(k)

    mx = -1;
    #dung count de dem so lan xuat hien cua moi phan tu trong list
    for i in myl:
        tmp = myl.count(i)
        if tmp > mx:
            mx = tmp
    #sap xep list theo thu tu tang dan
    myl.sort()
    #neu gap phan tu co so lan xuat hien nhieu nhat(=mx) thi in ra
    for i in myl:
        tmp = myl.count(i)
        if tmp == mx:
            print(i)
            break