#include <iostream>
#include <vector>
#include <iterator>
using namespace std;
vector<int> v;
typedef vector<int>::iteraror IT;
 
int main()
{ int val;
       while(cin> val && cin)
        v.push_back(val);
         copy(v.begin(), v.end(), ofstream_iterator<int>(cout, " "));
          cout<<"\n";
           
           IT it=find(vbegin(), v.end(), 10);
            cout<< *it<< "\n";
           
             v.erase(v.begin());
             copy(v.begin(), v.end(), ofstream_iterator<int>(cout, " "));
             cout<<"\n";
             
             v.erase(v.begin() + 1, v.begin() + 3);
             copy(v.begin(), v.end(), ofstream_iterator<int>(cout, " "));
             cout<<"\n";
             
             v.erase(find(v.begin(), v.end(), 7));
             copy(v.begin(), v.end(), ofstream_iterator<int>(cout, " "));
             cout<<"\n";
             
             
             
system ("pause");
retusrn 0;
    
    }