def main():
    t = int(input())
    mod = 998244353

    dp = [0] * 101
    dp[0] = 2
    for i in range(1, 101):
        dp[i] = 2 * (sum(dp) + 1) % mod

    for _ in range(t):
        n = int(input())
        print(dp[n - 1])


if __name__ == "__main__":
    main()