AC

#include<bits/stdc++.h>
using namespace std;
int main(){
char a;
cin>>a;
if(int(a)>=97&&int(a)<='z'){

	cout<<"a";
}
else if(int(a)>='A'&&int(a)<='Z'){
	cout<<"A";
}
else if(int(a)>='0'&&int(a)<='9'){
	cout<<"0";	
}
else{
	cout<<"other";
}





return 0;
}