#include<bits/stdc++.h>
using namespace std;
bool check(string s)
{
	if(s.size()<6||s.size()>12) return false;
	bool c1=0,c2=0,c3=0;
	int c4=0;
	for(int i=0;i<s.size();i++)
	{
		if(s[i]>='a'&&s[i]<='z')
		{
			c1=1;
			continue;
		}
		if(s[i]>='A'&&s[i]<='Z')
		{
			c2=1;
			continue;
		}
		if(s[i]>='0'&&s[i]<='9')
		{
			c3=1;
			continue;
		}
		if(s[i]=='!'||s[i]=='@'||s[i]=='#'||s[i]=='$')
		{
			c4=1;
			//cout<<"?????????????";
			continue;
		}
		return false; //一定不是合法的字符 
	}
	
	int t=c1+c2+c3;
	//cout<<t<<" "<<c4<<endl;
	if(t>=2&&c4) return true;
	return false;
	
}
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]==',')
		{
			string s1=s.substr(last,i-last);
		//	cout<<s1<<endl;
			if(check(s1))
			{	
				cout<<s1<<endl;
			}
			last=i+1;
		}
	}
	return 0;
}