118 A . String Task.cpp

//============================================================================
//problem link:http://codeforces.com/contest/118/problem/A
// Name        :  118 A . String Task.cpp
// Author      : mohand sakr
// Version     :
// Copyright   : use it under your responsibility
// Description : Hello World in C++, Ansi-style
//status :accepted
//============================================================================

#include <iostream>
#include <string>
using namespace std;

int main() {
string s,s2;
cin>>s;
int len=s.length();
for(int i=0;i<len;i++){
	if(s[i]=='a'||s[i]=='e'||s[i]=='i'||s[i]=='o'||s[i]=='u'||s[i]=='y'||s[i]=='A'||s[i]=='E'||s[i]=='O'||s[i]=='I'||s[i]=='U'||s[i]=='Y')
		continue;
	else
	{
		s2+='.';
		s2+=towlower(s[i]);
	}



}
cout<<s2;







	return 0;
}