#include <iostream>
#include <string>
using namespace std;
int main()
{
long long int a[26]={1,10,19,28,37,46,55,64,39,73,82,2,11,20,48,29,38,47,56,65,74,83,21,3,12,30};
string b;
while (cin >> b) {
int c, d[9]={0}, num=0, ans;
c=a[b[0]-65];
for (int i=1;i<10;i++) {
if (i==9) {
d[num]=b[i]-48;
break;
}
d[num]=(b[i]-48)*(9-i); num++;
}
ans=c+d[0]+d[1]+d[2]+d[3]+d[4]+d[5]+d[6]+d[7]+d[8];
ans%10==0 ? cout << "real" << endl : cout << "fake" << endl;
}
}