#include <bits/stdc++.h>
using namespace std;
#define ll long long int
#define pb push_back 
#define mp make_pair
#define asort(a,n) sort(a,a+n)
#define vsort(v) sort(v.begin(),v.end())
#define all(v) v.begin(),v.end()
#define run ios_base::sync_with_stdio(false);cin.tie(0);cout.tie(0);cerr.tie(0);
#define mod 1000000007
#define LL_MAX LLONG_MAX
#define yes cout<<"YES"<<endl
#define no cout<<"NO"<<endl

//********************************* mekch ************************************//

ll gcd(ll a, ll b) 
{ 
    if (b == 0) 
        return a; 
    return gcd(b, a % b);  
      
} 

        /* 
        for(i=0;i<n;i++)
       {
           cout<<c[i] ;
           cout<<"--->"<<d[i]<<endl;
       }  
       
       for(i=0;i<n;i++)
         cout<<a[i]<<" ";
         
         cout<<endl;
         */
         

int main()
 {
  run;
  ll n;
  cin>>n;
  if(n>=0)
   cout<<n;
   else
   cout<<0;
  
 }
#include<iostream>
#include<utility>
#include<vector>
#include<climits>
#include<set>
using namespace std;



int main()
{ 
  ios_base::sync_with_stdio(0),cin.tie(0),cout.tie(0);

  
  char ch1,ch2,ch3;
  cin>>ch1>>ch2>>ch3;
  if(ch1==ch2 && ch1==ch3) cout<<"Won\n";
  else cout<<"Lost\n";

  return 0;
}