#include <iostream>

 #include <cstdio>

 #include <cstring>

 #include <cmath>

 using namespace std;

 #define ll long long

 const int maxn = ;

 int n,m,x;

 int a[maxn];

 void nim(){

     cin>>n;

     int res = ;

     for(int i = ; i<= n; i++){

         cin>>a[i];

         res ^= a[i];

     }

     if(res == ){

         cout<<"lose"<<endl;

     }

     else{

         //cout<<res<<endl;

         for(int i = ; i <= n; i++){

             if((a[i]^res) < a[i]){

                 cout<<(a[i] - (a[i]^res))<<" "<<i<<endl;

                 a[i] ^= res;

                 break;

             }

         }

         for(int i = ; i <= n; i++){

             cout<<a[i]<<" ";

         }

         cout<<endl;

     }

 }

 int main(){

     nim();

     return ;

 }