N = int(input())

'''
2**((p - 1) * (p - 1)) = (2**(p - 1))**(p - 1) = 1**(p - 1) = 1 (mod p)
(p - 1)**2 = p**2 - 2 * p + 1 = 1 (mod p)
'''

for _ in range(N):
    p = int(input())
    if p == 2:
        print(2)
    else:
        print((p - 1)**2)