#include<iostream.h>
int putere(int n)
{ int p=1;
  while(n)
  {  p=p*10;
     n=n/10;
  }
  return p;
}
void main()
{  int n, a[100],b[100];
   long c[100];
   cin>>n;
   for(int i=1;i<=n;i++) cin>>a[i];
   for(i=1;i<=n;i++) cin>>b[i];
   for(i=1;i<=n;i++)
    if(a[i]<b[i]) c[i]=(long)a[i]*putere(b[i])+b[i];
    else c[i]=(long)b[i]*putere(a[i])+a[i];
   for(i=1;i<=n;i++) cout<<c[i]<<" ";
}