#include<bits/stdc++.h> using namespace std; int main(){ char c; cin>>c; if(c>='A'&&c<='Z'){ cout<<"大写字母"<<endl; } else if(c>='a'&&c<='z'){ cout<<"小写字母"<<endl; } else if(c>='0'&&c<='9'){ cout<<"数字字符"<<endl; } else{ cout<<"其他字符"<<endl; } return 0; }