/* BABA JAGAAAAAA  */  

#include<bits/stdc++.h>
#define pb push_back
#define un unordered_map
#define us unordered_set
#define ll long long
#define PI 3.1415926535897932384626
#define fast ios:: sync_with_stdio(false);cin.tie(NULL)
#define l long 
using namespace std;
const int  mod= 1e9+7;
const int inf=1e9+3;
 int main()
 {
     fast;  
    int x;
     cin>>x; 
      if(x>=0)
      cout<<x<<"\n";
      else
      cout<<0<<"\n";
       return 0;
     
 }
  
#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const int mod = 1e9+7;
#define all(x) (x).begin(),(x).end()
#define fr first
#define sc second
#define nl '\n'



void solve(){

    int x;cin>>x;
    cout<<max(x,0);
}

int main(){

    ios_base::sync_with_stdio(false);
    cin.tie(NULL);
    cout.tie(NULL);


    int t=1;
    //cin>>t;
    while(t--){
        solve();
    }


return 0;
}
