#include<bits/stdc++.h>
#define ll long long
using namespace std;
string a,b;
int flag1,flag2;
int main(){
	cin>>a>>b;
	for(int i=0;i<=a.size();i++){
		if((a[i]=='r'||a[i]=='R')&&(a[i+1]=='i'||a[i+1]=='I')&&(a[i+2]=='o'||a[i+2]=='O')&&(a[i+3]=='i'||a[i+3]=='I')){
			flag1=1;
			break;
		}
	}
	for(int i=0;i<=b.size();i++){
		if((b[i]=='r'||b[i]=='R')&&(b[i+1]=='i'||b[i+1]=='I')&&(b[i+2]=='o'||b[i+2]=='O')&&(b[i+3]=='i'||b[i+3]=='I')){
			flag2=1;
			break;
		}
	}
	if(flag1==1&&flag2==1) cout<<"Either is ok!";
	else if(flag1==1&&flag2==0) cout<<a<<" for sure";
	else if(flag1==0&&flag2==1) cout<<b<<" for sure";
	else cout<<"Try again!";
	return 0;
}