#include<bits/stdc++.h>
using namespace std;

int a[100005];

int main()
{
	freopen("lixian.in", "r", stdin);
	freopen("lixian.out", "w", stdout);
	ios::sync_with_stdio(0);
	cin.tie(0);
	
    int n,q;
    cin>>n>>q;
    for(int i=1;i<=n;i++)
    {
        cin>>a[i];
    }
    while(q--)
    {
        int l,r,x;
        cin>>l>>r>>x;
        int ans=0;
        for(int i=l;i<=r;i++)
        {
            if(a[i]==x) ans++;
        }
        cout<<ans<<endl;
    }
    return 0;
}