#include<bits/stdc++.h> using namespace std; string s,ans[5]; int cnt=0; int main(){ auto input=freopen("aha.in","r",stdin); auto output=freopen("aha.out","w",stdout); ios::sync_with_stdio(0); cin>>s; for(int i=0;i<s.size();i++){ if(s[i]<='z'&&s[i]>='a')ans[1]+=s[i]; else if(s[i]<='Z'&&s[i]>='A')ans[2]+=s[i]; else if(s[i]<='9'&&s[i]>='0')ans[3]+=s[i]; else ans[4]+=s[i]; } cnt=(ans[1].size()!=0)+(ans[2].size()!=0)+(ans[3].size()!=0)+(ans[4].size()!=0); cout<<"password level:"<<cnt<<endl; if(ans[1].size())cout<<ans[1]<<endl; else cout<<"(Null)"<<endl; if(ans[2].size())cout<<ans[2]<<endl; else cout<<"(Null)"<<endl; if(ans[3].size())cout<<ans[3]<<endl; else cout<<"(Null)"<<endl; if(ans[4].size())cout<<ans[4]<<endl; else cout<<"(Null)"<<endl; return 0; } //jbhakioi