#include<bits/stdc++.h> using namespace std; int main(){ int a; cin>>a; if(a<=150){ cout<<"S"; }else if(a>=151&&a<=160){ cout<<"M"; }else if(a>=161&&a<=170){ cout<<"L"; }else if(a>=171&&a<=180){ cout<<"XL"; }else if(a>=181){ cout<<"XXL"; }else{ return 0; } return 0; }