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#include<iostream>
#include<fstream>
//ifstream fin1("f1.txt");
//ifstream fin1("f2.txt");
double v1[100],v2[100];
int main()
  {
   int i,n1=0,n2=0
   double x1,x2;
   while(fin>x1)
   {
    v[++n1]=x1;
   }
   while(fin>x2)
   {
    v[++n2]=x2;
   }

  for(i=1;i<=n1;i++)
   {
    for(j=1;j<=n2;j++)
    {
      if(v1[i]==v2[j])
       {
         cout<<v1[i]<<" ";
       }
    }
   }
  }