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;
string s;
int main()
{
	cin>>s;
	int c=0;
	if(s[0]!='A')
	{
		cout<<"WA"<<endl;
		return 0;
	}
	for(int i=2;i+1<s.size();i++)
	{
		c+=s[i]=='C';
	}
	if(c!=1)
	{
		cout<<"WA"<<endl;
		return 0;
	}
	c=0;
	for(int i=0;i<s.size();i++)
	{
		c+=s[i]<='Z';
	}
	cout<<(c==2?"AC":"WA")<<endl;
}
