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

const int N = 1e5 + 100;

int n, m, q;

struct Player {
    int id;   
    int score; 
    int en;  
} a[N];

bool cmp(const Player& u, const Player& v) {
    if (u.score != v.score) {
        return u.score > v.score;
    }
    return u.id < v.id;
}

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);

    cin >> n >> m >> q;

    for (int i = 1; i <= 2 * n; i++) {
        cin >> a[i].score;
        a[i].id = i;
    }

    for (int i = 1; i <= 2 * n; i++) {
        cin >> a[i].en;
    }

    while (m--) {
        sort(a + 1, a + 1 + 2 * n, cmp);
for (int i = 1; i <= 2 * n; i += 2) {
            if (a[i].en > a[i + 1].en) {
                a[i].score++;
            } else {
                a[i + 1].score++; 
	            }
        }
    }

    sort(a + 1, a + 1 + 2 * n, cmp);

    cout << a[q].id << '\n';

    return 0;
}