/* package whatever; // don't place package name! */
class Main {
public static void main
(String[]a
){ c();
}
static void c(){
for(int i=0; i<703;){
System.
out.
print((char)(i
++%27
> 0 ? 65 + (i/27+i%27%2)%26
:10));
}
}
}
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