#include #include using namespace std; using namespace atcoder; typedef long long int ll; typedef long double ld; #define FOR(i,l,r) for(ll i=l;i=l;i--) #define RREP(i,n) RFOR(i,0,n) #define ALL(x) x.begin(),x.end() #define P pair #define F first #define S second #define BS(A,x) binary_search(ALL(A),x) #define LB(A,x) (ll)(lower_bound(ALL(A),x)-A.begin()) #define UB(A,x) (ll)(upper_bound(ALL(A),x)-A.begin()) #define COU(A,x) (UB(A,x)-LB(A,x)) templateusing min_priority_queue=priority_queue,greater>; using mint=modint1000000007; //using mint=modint998244353; void chmax(ll&a,ll b){a=max(a,b);} void chmin(ll&a,ll b){a=min(a,b);} int main(){ string S="ESWN"; char A,B;cin>>A>>B; ll a=0,b=0; while(S[a]!=A)a++; while(S[b]!=B)b++; cout<<(b+4-a)%4<