#include <iostream>
using namespace std;
int main(){
  string s;
  cin >> s;
  int count =0;
  int t=0;
  if(s[0]=='A') count++;
  for(int i=2;i<s.size()-1;i++){
    if(s[i]=='C') t++;
  }
  if(t==1) count++;
  t=0;
  for(int i=0;i<s.size();i++){
    if(isupper(s[i])) t++;
  }
  if(t==2) count++;
  if(count==3){
    cout << "AC" << endl;
  }else{
    cout << "WA" << endl;
  }
}

### Prompt

In Cpp, your task is to solve the following problem:

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

### Response

```cpp
#include <iostream>
using namespace std;
int main(){
  string s;
  cin >> s;
  int count =0;
  int t=0;
  if(s[0]=='A') count++;
  for(int i=2;i<s.size()-1;i++){
    if(s[i]=='C') t++;
  }
  if(t==1) count++;
  t=0;
  for(int i=0;i<s.size();i++){
    if(isupper(s[i])) t++;
  }
  if(t==2) count++;
  if(count==3){
    cout << "AC" << endl;
  }else{
    cout << "WA" << endl;
  }
}

```