#include<iostream> #include<cstdio> using namespace std; int main(){ int a; char b; cin>>b; a=b; if(a>=65&&a<=90){ cout<<"upper letter"<<endl; } else if(a>=98&&a<=122){ cout<<"lower letter"<<endl; } else if(a>=48&&a<=57){ cout<<"number"<<endl; } else{ cout<<"other"<<endl; } return 0; }