#include<bits/stdc++.h> using namespace std; #define int long long const int MAXN=114514; int ccf=250; string s; string s1,s2,s3,s4; int a1=0,a2=0,a3=0,a4=0; signed main(){ // freopen("aha.in", "r", stdin); // freopen("aha.out", "w", stdout); cin>>s; for(int i=0;i<s.size();i++){ if(s[i]>='a'&&s[i]<='z')s1+=s[i]; else if(s[i]>='A'&&s[i]<='Z')s2+=s[i]; else if(s[i]>='0'&&s[i]<='9')s3+=s[i]; else s4+=s[i]; } cout<<"password level:"<<(s1.size()!=0)+(s2.size()!=0)+(s3.size()!=0)+(s4.size()!=0)<<endl; if(s1.size())cout<<s1<<endl; else cout<<"(Null)\n"; if(s2.size())cout<<s2<<endl; else cout<<"(Null)\n"; if(s3.size())cout<<s3<<endl; else cout<<"(Null)\n"; if(s4.size())cout<<s4<<endl; else cout<<"(Null)\n"; return 0; } /*lzszs*/