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#include <bits/stdc++.h>
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using namespace std;
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int main() {
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    std::ios_base::sync_with_stdio(false);
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    cin.tie(0);
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    cout.tie(0);
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    int n, k;
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    cin >> n >> k;
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    int a[n];
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    for (int i = 0; i < n; ++i) {
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        cin >> a[i];
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    }
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    for (int i = 0; i < k; ++i) {
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        int x;
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        cin >> x;
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        // a[j - 1] < x <= a[j]
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        int j = (lower_bound(a + 0, a + n, x) - a);
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        if (j == n || x < a[j]) {
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            cout << "NO" << endl;
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        } else {
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            cout << "YES" << endl;
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        }
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    }
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    return 0;
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}
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