#include <bits/stdc++.h>

using namespace std;
using ll=long long;

int main()
{
    string x;
    cin>>x;
    string t;
    cin>>t;
    int p=10;
    for(auto cl:t)
    {
        bool w=false;
        while(x.find(cl)!=string::npos)
        {
            x.erase(x.begin()+x.find(cl));
            w=true;
        }
        if(w==false){
            p--;
        }
        if(x.size()==0)
        {
            cout<<"WIN";
            return 0;
        }
        if(p==0)
        {
            cout<<"LOSE";
            return 0;
        }
    }
    cout<<"LOSE";
    return 0;
}