import java.util.*;
import java.lang.*;
import java.io.*;

public class Main
{
	public static void main (String[] args) throws java.lang.Exception
	{
		Scanner sc = new Scanner (System.in);
                String s=sc.next();
                int n= s.length();
                255  255   1   1135
                        i=2
                        j=5
                        k=6

                for(int i=0; i<n; i++){
                        for(int j= i+1; j<n; j++){
                                for(int k =j+1; k<n-1;  k++){
                                        long []ans= new long [4];
                                        ans[0]=0;
                                        for(int q=0;q<=i;q++){
                                                ans[0]*=10;
                                                int x=(s.charAt(q)-'0');
                                                ans[0]+=(long)x;
                                        }
                                        ans[1]=0;
                                        for(int q=i+1;q<=j;q++){
                                                ans[1]*=10;
                                                int x=(s.charAt(q)-'0');
                                                ans[1]+=(long)x;
                                        }
                                        ans[2]=0;
                                        for(int q=j+1;q<=k;q++){
                                                ans[2]*=10;
                                                int x=(s.charAt(q)-'0');
                                                ans[2]+=(long)x;
                                        }
                                        ans[3]=0;
                                        for(int q=k+1;q<n;q++){
                                                ans[3]*=10;
                                                int x=(s.charAt(q)-'0');
                                                ans[3]+=(long)x;
                                        }
                                        int flag=0;

                                        for(int p=0;p<4;p++)
                                        {
                                                // if(i==2 && j==5 && k==7)System.out.print(ans[p]+" ");
                                                if(ans[p]>255)flag=1;
                                        }

                                        if(flag==1 )continue;
                                        for(int p=0;p<3;p++)
                                        {
                                                System.out.print(ans[p]+".");
                                        }
                                        System.out.println(ans[3]);


                                }
                        }
                }
	}
}