#include <iostream>

#include <string>

using namespace std;

int main(void) {

  int data[] = { 1, 10, 19, 28, 37, 46, 55, 64, 39, 73, 82,  2, 11,

                20, 18, 29, 38, 47, 56, 65, 74, 83, 21,  3, 12, 30};

  string str;

  while(cin >> str) {

    int top, discriminant,num[9] = {0}, index = 0;

    top = data[str[0] - 65];

    for(int i = 1; i <= 9; i++) {

      if(i == 9) {

        num[index] = str[i] - 48;

        break;

      }

      num[index] = (str[i] - 48) * (9 - i); index++;

    }

    discriminant = top;

    for(int i = 0; i <= 8; i++)

      discriminant += num[i];

    cout << (discriminant % 10 == 0 ? "real" : "fake") << endl;

  }

  return 0;

}