import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.Arrays;
import java.util.NoSuchElementException;
import java.util.PriorityQueue;

public class Main {
	public static void main(String[] args) {
		new Main().run();
	}
	
	class State implements Comparable<State>{
		int id;
		int col;
		int num;
		public State(int id,int col,int num) {
			this.id=id;
			this.col=col;
			this.num=num;
		}
		@Override
		public int compareTo(State o) {
			return -Integer.compare(col, o.col);
		}
		
	}
	
	final long MOD=998244353;

	void run() {
		FastScanner sc=new FastScanner();
		int N=sc.nextInt();
		int Q=sc.nextInt();
		long[] A=new long[N+1];
		long[] ans=new long[Q];
		long[] prd=new long[N+1];
		for (int i=0;i<N;++i) {
			A[i]=-sc.nextLong();
		}
		A[N]=0;
		Arrays.sort(A);
		for (int i=0;i<N;++i) A[i]*=-1;
		prd[N]=1;
		for (int i=N-1;i>=0;--i) prd[i]=prd[i+1]*A[i]%MOD;
		PriorityQueue<State> pq=new PriorityQueue<>();
		for (int i=0;i<Q;++i) {
			int l=sc.nextInt();
			int r=sc.nextInt();
			int p=sc.nextInt();
			for (int j=l;j<=r;++j) {
				pq.add(new State(i, j, p));
			}
		}
		long[] dp=new long[N+1];
		dp[0]=1;
		for (int i=0;i<=N;++i) {
			while (!pq.isEmpty() && A[i]<pq.peek().col) {
				State s=pq.poll();
				ans[s.id]^=dp[s.num]*prd[i]%MOD;
			}
			if (i==N) break;
			for (int j=N;j>=0;--j) {
				dp[j]=((j==0?0:dp[j-1])+(A[i]-1)*dp[j]%MOD)%MOD;
			}
		}
		PrintWriter pw=new PrintWriter(System.out);
		for (int i=0;i<Q;++i) {
			pw.println(ans[i]);
		}
		pw.close();
	}
	
	void tr(Object...o) {System.out.println(Arrays.deepToString(o));}
}

class FastScanner {
    private final InputStream in = System.in;
    private final byte[] buffer = new byte[1024];
    private int ptr = 0;
    private int buflen = 0;
    private boolean hasNextByte() {
        if (ptr < buflen) {
            return true;
        }else{
        	ptr = 0;
            try {
                buflen = in.read(buffer);
            } catch (IOException e) {
                e.printStackTrace();
            }
            if (buflen <= 0) {
                return false;
            }
        }
        return true;
    }
    private int readByte() { if (hasNextByte()) return buffer[ptr++]; else return -1;}
    private static boolean isPrintableChar(int c) { return 33 <= c && c <= 126;}
    public boolean hasNext() { while(hasNextByte() && !isPrintableChar(buffer[ptr])) ptr++; return hasNextByte();}
    public String next() {
        if (!hasNext()) throw new NoSuchElementException();
        StringBuilder sb = new StringBuilder();
        int b = readByte();
        while(isPrintableChar(b)) {
            sb.appendCodePoint(b);
            b = readByte();
        }
        return sb.toString();
    }
    public long nextLong() {
        if (!hasNext()) throw new NoSuchElementException();
        long n = 0;
        boolean minus = false;
        int b = readByte();
        if (b == '-') {
            minus = true;
            b = readByte();
        }
        if (b < '0' || '9' < b) {
            throw new NumberFormatException();
        }
        while(true){
            if ('0' <= b && b <= '9') {
                n *= 10;
                n += b - '0';
            }else if(b == -1 || !isPrintableChar(b)){
                return minus ? -n : n;
            }else{
                throw new NumberFormatException();
            }
            b = readByte();
        }
    }
    public int nextInt() {
        long nl = nextLong();
        if (nl < Integer.MIN_VALUE || nl > Integer.MAX_VALUE) throw new NumberFormatException();
        return (int) nl;
    }
    
    public double nextDouble() { return Double.parseDouble(next());}
}