mod = 1000000007
eps = 10**-9


def main():
    import sys
    input = sys.stdin.readline

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


if __name__ == '__main__':
    main()