import sys
input = lambda : sys.stdin.readline().rstrip()
sys.setrecursionlimit(max(1000, 10**9))
write = lambda x: sys.stdout.write(x+"\n")


n = int(input())
ps = [int(input()) for _ in range(n)]
def sub(p):
    if p==2:
        return 2
    return (p-1)**2
write("\n".join(map(str, [sub(p) for p in ps])))