#include <iostream>
using namespace std;
int main(void)
{
char ch;
cin>>ch;
if(ch >= 'a' && ch <= 'z')
cout<<"輸入字元為小寫字母\n";
if(ch >= 'A' && ch <= 'Z')
cout<<"輸入字元為大寫字母\n";
if(ch >= '0' && ch <='9')
cout<<"輸入字元為阿拉伯數字\n";
return 0;
}
0 意見