#include #include #include #include #include #include #include #include #include using namespace std; typedef long long ll; typedef vector vi; typedef vector vvi; #define rep(i,n) for(ll i=0;i<(n);i++) #define pii pair #define piii pair #define mp make_pair #define pb push_back #define ALL(a) (a).begin(),(a).end() #define FST first #define SEC second const int INF = (INT_MAX/2); const ll LLINF = (LLONG_MAX/2); const double eps = 1e-5; const double PI = M_PI; #define DEB cerr<<"!"<> s; rep(i,int(s.size())-2){ if(s[i] == s[i+1] && s[i+1] == s[i+2]){ cout <<((s[i] == 'O')?("East"):("West")) << endl; return 0; } } cout << "NA" << endl; return 0; }