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

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