#include <bits/stdc++.h>
#include <iomanip>
using namespace std;
int left=0,l,right=10086,ans,sum,mid,num,s,n,m;
int a[10086];
int i,j;
int f(int x) {
	for(i=1; i<=n+1; ++i) {
		if(num>m) {
			return 0;
		} else {
			return 1;
		}
	}
}
int main() {
	cin>>l>>m>>n;
	for(i=1; i<=m; ++i) {
		cin>>a[i];
	}
	for(i=1; i<=n; ++i) {
		while(left<right) {
			int mid=(left+right)/2;
			if(f(mid)) {
				left=mid+1;
				ans=mid;
			} else {
				right=mid-1;
			}
		}
	}
	cout<<ans;
	return 0;
}