#include<bits/stdc++.h>
using namespace std;
int main(){
	int n,t,q,v,t2;
	string s;
	getline(cin,s);
	for(int i=0;i<s.size();i++)
		if((s[i]>='a'&&s[i]<='z')||(s[i]>='A'&&s[i]<='Z'))
			n++,cout<<".";
		else cout<<s[i];
	cout<<endl;
	if(abs(n-n/3*3)>abs(n-n/3*3-3)) t=n/3+1;
	else t=n/3;
	t2=t;
	for(int i=0;i<s.size();i++)
	{
		if((s[i]>='a'&&s[i]<='z')||(s[i]>='A'&&s[i]<='Z'))
		{
			if(t) cout<<s[i],t--;
			else 
			{
				cout<<'.';
				if(s[i]=='a'||s[i]=='e'||s[i]=='i'||s[i]=='o'||s[i]=='u'||
			  	   s[i]=='A'||s[i]=='E'||s[i]=='I'||s[i]=='O'||s[i]=='U') q=1;
			}
		}
		else cout<<s[i];
	}
	cout<<endl;
	t=t2;
	if(q)
	{
		for(int i=0;i<s.size();i++)
		{
			if((s[i]>='a'&&s[i]<='z')||(s[i]>='A'&&s[i]<='Z'))
			{
				if(t) cout<<s[i],t--;
				else if(s[i]=='a'||s[i]=='e'||s[i]=='i'||s[i]=='o'||s[i]=='u'||
				        s[i]=='A'||s[i]=='E'||s[i]=='I'||s[i]=='O'||s[i]=='U')
				        	cout<<s[i]; 
				else cout<<".";
			}
			else cout<<s[i];
		}
	}
	else 
	{
		//cout<<"v"<<v<<endl;
		if(abs(n*2-n/3*6)>abs(2*n-n/3*6-3)) v=n/3*2+1;
		else v=n/3*2;
		for(int i=0;i<s.size();i++)
		{
			if((s[i]>='a'&&s[i]<='z')||(s[i]>='A'&&s[i]<='Z'))
			{
				if(v) cout<<s[i],v--;
				else cout<<".";
			}
			else cout<<s[i];
		}
		
	}
	return 0;
}