//Normal

#define _GLIBCXX_DEBUG
#define ll long long
#include <bits/stdc++.h>
using namespace std;
using Graph = vector<vector<int>>;

void print(auto a){
  cout << a;
}

void prints(auto a){
  cout << a << " ";
}

void prints(){
  cout << " ";
}

void printl(auto a){
  cout << a << endl;
}

void printl(){
  cout << endl;
}

void fix(int n){
  cout << fixed << setprecision(n);
}

int main(){
  char A, B; cin >> A >> B;
  
  vector<char> X = {'E', 'S', 'W', 'N'};
  
  int now = 0, ans = 0;
  for(int i = 0; i < 4; i++){
    if(A == X[i]) now = i;
  }
  
  for(int i = 0; i < 4; i++){
    if(B == X[(now+ans)%4]){
      printl(i);
      
      return 0;
    }
    
    ans++;
  }
}