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

#inlude<its/stdc++.h> using namespce std; int main(){ char ch; cin>ch; if('a'<=ch and ch<='z'){ cou<<"小写字母" }ele if('A'<=ch and ch<='Z'){ out<<"大写字母"; }else if('0'<=ch and ch<='9'{ cout<<"数字字符"; }else{ cut<<"其它字符"; } return 0; }

#include<bits/stdc++.h> using namespce std; int main(){ char ch; cin>>ch; if('a'<=ch and ch<='z'){ cout<<"小写字母" }ele if('A'<=ch and ch<='Z'){ cout<<"大写字母"; }else if('0'<=ch and ch<='9'){ cout<<"数字字符"; }else{ cout<<"其它字符"; } return 0; }

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