#include <bits/stdc++.h>
#include <ext/pb_ds/assoc_container.hpp>
#include <ext/pb_ds/tree_policy.hpp>

using namespace __gnu_pbds;
using namespace std;

int main()
{
  ifstream in("adunare.in");
  ofstream out("adunare.out");
  tree <int, null_type, less <int>, rb_tree_tag, tree_order_statistics_node_update> s;
  int a, b;

  in >> a >> b;
  in.close();

  s.insert(a);
  s.insert(b);

  out << *s.find_by_order(0) + *s.find_by_order(1) << endl;
  out.close();
  return 0;
}