#include <iostream>
#include <string.h>

using namespace std;

int main()
{ char a[20], b[20];
int i,j,k;
cin>>a>>b;
for (i=0;j<=strlen(a);i++)
    for(j=0;j<=strlen(b);j++)
    if(a[i]==b[i])
    cout<<a[i]<<" ";


    cout<<endl;
    for(i=0;i<=strlen(a);i++)
    {
        k=0;
        for(j=0;j<=strlen(a);j++)
            if(a[i]==b[j])
            k++;
        if(k==0)
            cout<<a[i]<<" ";
    }
}