题解

#include<iostream>
using namespace std;
int main(){
    char c;
    cin>>c;
    if(c>='A'&&c<='Z'){
        cout<<'A';
    }else if(c>='a'&&c<='z'){
        cout<<'a';
    }else if(c>='0'&&c<='9'){
        cout<<'0';
    }else{
        cout<<"other";
    }
    return 0;
}