注：其实不用费劲吧唧的记ASCll码，像我这样，简单省事

#include<bits/stdc++.h>
using namespace std;
char a;
int main(){
    cin>>a;
    if(a<='9' && a>='0')cout<<"0";
    else if(a>='a')cout<<"a";
    else if(a>='A' && a<='Z')cout<<"A";
    else cout<<"other";
    return 0;
}