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<iostream>
using namespace std;

int main()
{
	string s;
	while(cin >> s){
	int x = 0;
	for(int i=2;i < s.size()-1;i++){
		if(s[i] == 'C') x++;
		else if(s[i] >= 'A' && s[i] <= 'Z') goto go;
	}
	go:
	if(x == 1 && s[0] == 'A' && s[s.size()-1] >= 'a' && s[s.size()-1] <= 'z' && s[1] >= 'a' && s[1] <= 'z') cout << "AC\n";
	else cout << "WA\n";
}
	return 0;
}  
