题解

#include<bits/stdc++.h>
using namespace std;
int main() {
	char a;
	cin >> a;
	if(int(a) >= 'a' && int(a) <= 'z'){  //小写判断
		cout << "a";
	}
    else if(int(a) >= 'A' && int(a) <= 'Z'){  //大写判断
		cout << "A";
	}
    else if(int(a) >= '0' && int(a) <= '9'){  //数字判断
		cout << "0";
	}
    else{
		cout << "other";
	}
	return 0;
}