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#include <iostream>
#include <fstream>
#include <algorithm>
using namespace std;
ifstream f("sdo.in");
ofstream g("sdo.out");
int a[3000000];
int compare(const void* a, const void* b)
{
return (*(int*)a - *(int*)b);
}
int main()
{
int n,m; f>>n>>m;
for(int i=0;i<n;i++)
{
f>>a[i];
}
qsort(a, n, sizeof(int), compare);
/*for(int i=0;i<n;i++)
{
cout<<a[m]<<" ";
}*/
g<<a[m-1];
return 0;
}