#include<cstdio>
bool pd;
char s;
int n,k,size,last;
int main(){
scanf("%d%d%s",&n,&k,&s);
for (int i=0;i<n;++i) last-'A']=i;
for (int i=0;i<n;++i){
if (!pd-'A']) pd-'A']=true,++size;
if...
#include<bits/stdc++.h>
using namespace std;
int t;
int main(){
char a,b;
int n;
scanf(" %c %c",&a,&b);
scanf("%d",&n);
n%=4;
t=0,t=1,t=2,t=3;
int c=(t-t+4)%4;
if(n==0||n==2)puts("undefined");
else puts(n!=c?"cw":"ccw");
}