include "pch.h"

include

using namespace std;

int main() {

//1

char n;

while (cin >> n)
{
	if (n >= 'a'&&n <= 'z') {

		cout << "lower";
	}
	else if (n >= 'A'&&n <= 'Z')
	{
		cout << "upper";
	}
	else if (n == ' ')
	{
		cout << "space";
	}
	else if (n >= '0'&&n <= '9')
	{
		cout << "digit";
	}
	else
	{
		cout << "other";
	}
}

}