import bisect

N, Q = map(int, input().split())
A = sorted(list(map(int, input().split())), reverse=True)
MOD = 998244353

dp = [[0] * (N + 2) for _ in range(N + 1)]
dp[0][1] = 1
for i, a in enumerate(A):
    for j in range(1, N + 2):
        dp[i + 1][j] += dp[i][j] * (a - 1) + dp[i][j - 1]
        dp[i + 1][j] %= MOD

t = 1
for i, a in enumerate(reversed(A)):
    t = (t * a) % MOD
    for j in range(N + 2):
        dp[N - 1 - i][j] = dp[N - 1 - i][j] * t % MOD


Am = [-a for a in A]
for _ in range(Q):
    l, r, p = map(int, input().split())
    ans = 0
    for i in range(l, r + 1):
        y = bisect.bisect_right(Am, -i)
        ans ^= dp[y][p+1]
    print(ans % MOD)