#include<bits/stdc++.h> using namespace std; int main() { char ch; cin>>ch; if(ch>='A'&&ch<='Z'||ch>='a'&&ch<='z'||ch>='1'&&ch<='9') { if(ch>='A'&&ch<='Z'||ch>='a'&&ch<='z') { cout<<"character"; } if(ch>='1'&&ch<='9') { cout<<"digit"; } } else { cout<<"other"; } return 0; }