You are given a string S. Each character of S is uppercase or lowercase English letter. Determine if S satisfies all of the following conditions:

* The initial character of S is an uppercase `A`.
* There is exactly one occurrence of `C` between the third character from the beginning and the second to last character (inclusive).
* All letters except the `A` and `C` mentioned above are lowercase.

Constraints

* 4 ≤ |S| ≤ 10 (|S| is the length of the string S.)
* Each character of S is uppercase or lowercase English letter.

Input

Input is given from Standard Input in the following format:


S


Output

If S satisfies all of the conditions in the problem statement, print `AC`; otherwise, print `WA`.

Examples

Input

AtCoder


Output

AC


Input

ACoder


Output

WA


Input

AcycliC


Output

WA


Input

AtCoCo


Output

WA


Input

Atcoder


Output

WA
#include <bits/stdc++.h>
using namespace std; 
#define rep(i, n) for (int i = 0; i < (n); ++i)
 
int main() {
	
	
	string s;cin >>s;
	bool ok = true;
	if(s[0] != 'A')ok=false;
	
	int cnt = 0;
	
	for(int i=2;i<s.length()-1;i++) if(s[i]=='C')cnt++;
	if(cnt !=1)ok=false;
	
	cnt = 0;
	
	rep(i,s.size()) if('a'-s[i]>0)cnt++;
	if(cnt != 2) ok=false;
	
	cout <<(ok?"AC":"WA") << endl;
	
	
	
}