Codeforces Round #426 (Div. 2) A. The Useless Toy

#include<iostream>
#include<cstdio>
#include<cstring>
#include<algorithm>
using namespace std;
int read()
{
char ch=getchar();int f=0;
while(ch<'0'||ch>'9') ch=getchar();
while(ch>='0'&&ch<='9') {f=f*10+(ch^48);ch=getchar();}
return f;
}
int k,t;
int main()
{
char x,y;
cin>>x>>y;
if(x=='^')
k=0;
else if(x=='>')
k=1;
else if(x=='v')
k=2;
else k=3;
if(y=='^')
t=0;
else if(y=='>')
t=1;
else if(y=='v')
t=2;
else t=3;
//cout<<k<<" "<<t<<endl;
int f=read();
f%=4;
if((k+f)%4==t&&((k-f)%4+4)%4!=t)
cout<<"cw";
else if(((k-f)%4+4)%4==t&&(k+f)%4!=t)
cout<<"ccw";
else cout<<"undefined";
}