#include <iostream> using namespace std; int main(){ char a[2]; cin>>a[0]; cin>>a[1]; int n; cin>>n; n=n%4; if(int(a[0])-int(a[1])==24||int(a[0])-int(a[1])==-24||int(a[0])-int(a[1])==2||int(a[0])-int(a[1])==-2){ cout<<"undefined"; }else if(int(a[0])-int(a[1])==58||int(a[0])-int(a[1])==-34||int(a[0])-int(a[1])==32||int(a[0])-int(a[1])==-56){ if(n==1){ cout<<"cw"; }else{ cout<<"ccw"; } }else if(int(a[0])-int(a[1])==-58||int(a[0])-int(a[1])==34||int(a[0])-int(a[1])==-32||int(a[0])-int(a[1])==56){ if(n==3){ cout<<"cw"; }else{ cout<<"ccw"; } }else if(int(a[0])-int(a[1])==0){ cout<<"undefined"; } return 0; }