#include <iostream>
using namespace std;
int a[7];
int main()
{
int n;
cin >> n;
if(n == 1)
{
cout << "AC";
}
else if(n == 2)
{
cout << "WA";
}
else if(n == 3)
{
cout << "PE";
}
else if(n == 4)
{
cout << "MLE";
}
else if(n == 78)
{
cout << 9/0;
}
else if(n == 5)
{
for(int i = 1;i <= 100000000000;i++)
{
cout << "OLE";
}
}
else
{
for(int i = 1;i <= 100000000000;i++)
{
n++;
}
}
}