def la_so_nguyen_to(num):
    if num < 2:
        return False
    for i in range(2, int(num**0.5) + 1):
        if num % i == 0:
            return False
    return True

def phong_doan_goldbach(n):
    for i in range(2, n // 2 + 1):
        if la_so_nguyen_to(i) and la_so_nguyen_to(n - i):
            return i, n - i
    return None

def kiem_tra_phong_doan_goldbach(filename):
    with open(filename, 'r') as file:
        so_test = int(file.readline().strip())
        ket_qua = []

        for _ in range(so_test):
            num = int(file.readline().strip())
            result = phong_doan_goldbach(num)
            ket_qua.append(result)

    with open('GB.OUT', 'w') as output_file:
        for result in ket_qua:
            if result:
                output_file.write(f'{result[0]} {result[1]}\n')
            else:
                output_file.write('khong\n')

if __name__ == "__main__":
    kiem_tra_phong_doan_goldbach('GB.INP')