#include <bits/stdc++.h>
using namespace std;
using ll = long long;
using vll = vector<ll>;
using vvll = vector<vll>;
using vvvll = vector<vvll>;

using vb = vector<bool>;
using vvb = vector<vb>;
using vvvb = vector<vvb>;

#define all(A) A.begin(),A.end()
#define rep(i, n) for (ll i = 0; i < (ll) (n); i++)

vvll G;


int main() {
    char A,B;cin>>A>>B;
    if(A=='E'){
        if(B=='E')cout<<0<<endl;
        else if(B=='W')cout<<2<<endl;
        else if(B=='S')cout<<1<<endl;
        else cout<<3<<endl;
    }
    if(A=='W'){
        if(B=='W')cout<<0<<endl;
        else if(B=='E')cout<<2<<endl;
        else if(B=='N')cout<<1<<endl;
        else cout<<3<<endl;
    }
    if(A=='N'){
        if(B=='N')cout<<0<<endl;
        else if(B=='S')cout<<2<<endl;
        else if(B=='E')cout<<1<<endl;
        else cout<<3<<endl;
    }
    if(A=='S'){
        if(B=='S')cout<<0<<endl;
        else if(B=='N')cout<<2<<endl;
        else if(B=='W')cout<<1<<endl;
        else cout<<3<<endl;
    }
    return 0;
    if(A=='W'){
        if(B=='W')cout<<0<<endl;
        else if(B=='E')cout<<2<<endl;
        else cout<<1<<endl;
    }
    if(A=='E'){
        if(B=='E')cout<<0<<endl;
        else if(B=='W')cout<<2<<endl;
        else cout<<1<<endl;
    }
    if(A=='E'){
        if(B=='E')cout<<0<<endl;
        else if(B=='W')cout<<2<<endl;
        else cout<<1<<endl;
    }
}