题解

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