#include <stdio.h>
#include<math.h>
#include<iostream>
using namespace std;
int main()
{
 char id[11];
 int a[26]={10,11,12,13,14,15,16,17,34,18,19,20,21,22,35,23,24,25,26,27,28,29,32,30,31,33};
  while(cin>>id)
  {
  int sum=0,f;
  int p,ten,one;
  char h;
  h=toupper(id[0]);
  p=a[h-65];
  one=p%10;
  ten=p/10;
  for(f=1;f<=8;f++)
  sum=sum+(id[f]-48)*(9-f);
  sum=sum+one*9+ten+id[9]-48;
  if(sum%10==0)
  cout<<"real"<<endl;
  else
  cout<<"fake"<<endl;
  }
return 0;
}