import java.io.*;
import java.util.*;
import java.lang.*;
import java.*;
class PathFinder 
{
   public static void main(String args[])
  {
    try{
    // Open the file
    FileInputStream fstream = new FileInputStream(args[0]);
    // Get the object of DataInputStream
    DataInputStream in = new DataInputStream(fstream);
    BufferedReader br = new BufferedReader(new InputStreamReader(in));
    String strLine;
	String strLine2;
	

    //Read first line
    strLine = br.readLine();
	strLine2=strLine;
    in.close();
	
		BufferedWriter out2 = new BufferedWriter(new FileWriter("c"+args[0]));
		strLine2 = "["+strLine2.substring(0,strLine2.length()-1)+"]";
        out2.write(strLine2);
        out2.close();

    int len = strLine.length();
    int dim =  len/3;
    int i=0;
    int[] inX = new int[dim];
    int[] inY = new int[dim];
    int x1;
    int y1;
    int x2;
    int y2;
        
    //parse the string
    while(i< len)
    {
	  inX[i/3] = Integer.parseInt(""+strLine.charAt(i));
	  inY[i/3] = Integer.parseInt(""+strLine.charAt(i+1));
	  i=i+3;
    }
    
    //Output string start
    String strOut = "["+inX[0]+inY[0]+",";
    
    for(i=0; i < dim-1; i++)
    {
	    x1 = inX[i];
	    y1 = inY[i];
	    x2 = inX[i+1];
	    y2 = inY[i+1];
	    if (x1 >= x2)
		    while (x1 != x2)
		    {
			    x1--;
			    strOut = strOut + x1;
			    strOut = strOut + y1;
			    strOut = strOut + ",";
		    }
		else
			    while (x1 != x2)
			    {
				    x1++;
				    strOut = strOut + x1;
				    strOut = strOut + y1;
				    strOut = strOut + ",";
			    }
	    
	     if (y1 >= y2)
			    while (y1 != y2)
			    {
				    y1--;
				    strOut = strOut + x1;
				    strOut = strOut + y1;
				    strOut = strOut + ",";
			    }
			    else
				    while (y1 != y2)
				    {
					    y1++;
					    strOut = strOut + x1;
					    strOut = strOut + y1;
					    strOut = strOut + ",";

				    }
		
		
		
	   
    }
    	//string end
	strOut = strOut.substring(0,strOut.length()-1)+"]";
	//write the updated path
	BufferedWriter out = new BufferedWriter(new FileWriter(args[0]));
        out.write(strOut);
        out.close();
    }catch (Exception e){//Catch exception if any
      System.err.println("Error: " + e.getMessage());
    }

    
    
  }
}