#include<iostream>
using namespace std;
int main()
{
    int len1, len2, x;
    string s1="AMITABH BACHCHAN", s2="RAJNIKANTH", s="";
    //if you want to take two names from the users then just define
    //string s1,s1,s="";
    //and remove the '//' from below lines.
    //getline(cin,s1);
    //getline(cin,s2);
    len1= s1.length();
     len2= s2.length();
    for(int i=0;i<len1;i++)
    {
        for(int j=0;j<i;j++)
        {
            if(s1[i]==s1[j])
            {
                x=0;
                break;
            }
         }
        if(x==0)
        {
            x= 1;
            continue;
        }
        for(int k=0;k<len2;k++)
        {
            if(s2[k]==s1[i])
            {
                cout<<s1[i]<<" ";
                 break;
            }
        }
    }
    return 0;
}