#include <iostream>
#include <map>
#include <utility>
#include <string>
using namespace std;
 
string f (int a, int b, int c, int d) {
	using input =  tuple<int,int,int,int>;
 
    static map<input,string> mytable =  {
  	    { input{ 1, 3, 0, 1 }, "ok"}, 
        { input{ 0, 2, 1, 2 }, "fault"},
        { input{ 0, 0, 0, 0 }, "warning"}
    };
 
    return mytable[input{a,b,c,d}];
}
 
int main() {
	// your code goes here
	cout << f(0,2,1,2) <<endl;
	return 0;
}

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