#include<bits/stdc++.h>
using namespace std;
bool pd(string x)
{
    if (x.length()-1<6||x.length()-1>12)
    return 0;
    int sz=0,zf=0,zm1=0,zm2=0;//数字，字母1，字母2，特殊字符
    for (int i=1;i<x.length();i++)
    {
        if (x[i]>='0'&&x[i]<='9')
        sz++;
        else if (x[i]>='a'&&x[i]<='z')
        zm1++;
        else if (x[i]>='A'&&x[i]<='Z')
        zm2++;
        else if (x[i]=='!'||x[i]=='@'||x[i]=='#'||x[i]=='$')
        zf++;
        else
        return 0;
    }
    if (sz+zm2+zm1>=2&&zf>=1)
    return 1;
    return 0;
}
int main()
{
    string a,x=" ";
    getline(cin,a);
    for (int i=0;i<a.length();i++)
    {
        if (a[i]!=',')
	    x+=a[i];
	    else
	    {
	        if (pd(x))
	        {
	            for (int i=1;i<x.length();i++)
	            cout<<x[i];
	        }
	        cout<<endl;
	        x=" ";
	    }
	 }
	 if (pd(x))
	 cout<<x<<endl;
}