#include<bits/stdc++.h>
using namespace std;
int main()
{
    string s;
    cin>>s;
    s=s;
    int n=s.size();
    int last=0;
    for(int i=0;i<n;i++)
    {
        if(s[i]==',')
        {
        	continue; 
        }
        int j=i;
        while(j<n&&s[j]!=',') j++;
        j--;
     	string s1=s.substr(i,j-i+1);
        bool st=true;
		if(s1.size()<6||s1.size()>12) //长度不符合要求 
	    {
	        st=false;
	    }
	    bool c1=0,c2=0,c3=0;
	    int c4=0;
	    for(int i=0;i<s1.size();i++)
	    {
	        if(s1[i]>='A'&&s1[i]<='Z')
	        {
	            c1=1;
	            continue;
	        }
	        if(s1[i]>='a'&&s1[i]<='z')
	        {
	            c2=1;
	            continue;
	        }
	        if(s1[i]>='0'&&s1[i]<='9')
	        {
	            c3=1;
	            continue;
	        }
	        if(s1[i]=='!'||s1[i]=='@'||s1[i]=='#'||s1[i]=='$') //其它字符 
	        {
	            c4++;
	            continue;
	        }
	        st=false;
	    }
	    int t=c1+c2+c3;
	    if(t<=1||c4<1) //没有数字或者是其它字符小于一个 
	    {
	       st=false;
	    }
        if(st) //不合法 
        {
            cout<<s1<<endl;
        }
     	i=j; 
    }
    return 0;
}