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;
string s;
int sum;
bool c=false;
int main(){
	cin>>s;
	if (s[0]=='A'){
		for (int i=0;i<s.length();i++){
			if (s[i]>='A'&&s[i]<='Z') sum++;
		}
		if (sum==2){
			for (int i=2;i<s.length()-1;i++) if (s[i]=='C') c=true;
		}
	}
	if (c) cout<<"AC"<<endl;else cout<<"WA"<<endl;
	return 0;
}