mod = 998244353
eps = 10**-9


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

    N, Q = map(int, input().split())
    A = list(map(int, input().split()))
    A.sort(reverse=True)
    cm = [1] * N
    cm[-1] = A[-1]
    for i in range(N-2, -1, -1):
        cm[i] = (cm[i+1] * A[i])%mod

    dp = [[0] * (N + 1) for _ in range(N + 1)]
    dp[0][0] = 1
    for i in range(N):
        a = A[i]
        for j in range(N + 1):
            if dp[i][j] == 0:
                continue
            dp[i + 1][j] = (dp[i + 1][j] + dp[i][j] * (a - 1)) % mod
            if j + 1 <= N:
                dp[i + 1][j + 1] = (dp[i + 1][j + 1] + dp[i][j]) % mod

    A.reverse()

    for _ in range(Q):
        l, r, p = map(int, input().split())
        ans = 0
        for i in range(l, r+1):
            j = bisect_left(A, i)
            tmp = dp[N - j][p]
            if j > 0:
                tmp = (tmp * cm[-j])%mod
            ans = (ans ^ tmp)%mod
        print(ans)


if __name__ == '__main__':
    main()