import java.io.*;
import java.util.Scanner;
import java.util.regex.Pattern;
import java.io.PrintWriter;
 
public class Main {
 // enums of tokens used to parse the .in file 
    private static final byte CURLY_CLOSED = 1;
    private static final byte COMMA = 2;
    private static final byte COLON = 3;
    private static final byte STRING = 4;
    private static final byte NUMBER = 5;
    private static char token;
    private static StringBuilder result ;
   
    public static void main(String[] args)throws IOException
    {   // Used in getting the keys from the first object in the JSON
    	boolean keys = true;
    	// splitRegex splits by zero or more spaces, thus allowing to read the lines one character at a time
    	Pattern splitRegex = Pattern.compile("\\s*");
    	Pattern checkString = Pattern.compile("");
        final int builderCapacity = 6000;
    	Scanner reader = new Scanner(new FileInputStream("convertor.in"));
        PrintWriter writer = new PrintWriter("convertor.out");
        reader.useDelimiter(splitRegex);
        reader.skip("\\[");
        token = reader.next().charAt(0);
        
        // The resulting stream after parsing the input file; StringBuilder is used because of faster concatenation
        //times than String
        result = new StringBuilder(builderCapacity);
        
        //Goes through all the tokens in the file, determined by the delimiter set
        while( reader.hasNext() ){
             
        	//This loop is used to get the keys of the JSON Objects
             while(keys){
                if(checkToken(token) == CURLY_CLOSED){
                
                    keys = false;
                    // Write the keys of a JSON Object to the .out file and reinitialize the StringBuilder
                    result.append(System.lineSeparator());
                    writer.write(result.toString());
                    result = new StringBuilder(builderCapacity);
                    token = reader.next().charAt(0);
                    reader.close();
                    
                   // Reinitialize the scanner in order to parse the values for all the JSON Objects
                    reader = new Scanner(new FileInputStream("convertor.in"));
                    reader.useDelimiter(splitRegex);
                    reader.skip("\\[");        
                     
                }
                if(checkToken(token) == STRING ){
               
                	 getString(reader, splitRegex, checkString);
                }
                if(checkToken(token) == COLON){
                    //Skips the values, which will be parsed at a later time 
                    while( (checkToken(token) != COMMA) && (checkToken(token) != CURLY_CLOSED) ) {
                        token = reader.next().charAt(0);
                         
                    }
                 
                }
                 
                if(checkToken(token) != CURLY_CLOSED){
                    token = reader.next().charAt(0);   
                }
                 
            }
           
            token = reader.next().charAt(0);
            
// Here starts the parsing of the values, once we obtained the keys      
            if(checkToken(token) == COLON){
                token = reader.next().charAt(0);
                getString(reader, splitRegex, checkString);
                if(checkToken(token) == NUMBER){
                    while(checkToken(token) == NUMBER){
                        result.append(token);
                        token = reader.next().charAt(0);
                   }
                    result.append(',');
                }
            }
             
            if(checkToken(token) == CURLY_CLOSED){
            	// Write the values of a JSON Object to the .out file and reinitialize the StringBuilder
            	result.append(System.lineSeparator());
            	writer.write(result.toString());
            	result = new StringBuilder(builderCapacity);
            }
        
   
        }
    
        writer.close();
        reader.close();
   
    }
    
    // Helper method used to get a value or a key of  String type
    private static void getString(Scanner reader, Pattern splitRegex, Pattern checkString){
    	 if(checkToken(token) == STRING ){
         	token = reader.next().charAt(0);
         	reader.useDelimiter(checkString);
         	while(checkToken(token) != STRING){
         		
         			result.append(token);
         			token = reader.next().charAt(0);
         			
         	}
         	result.append(',');
         	reader.useDelimiter(splitRegex);
        
         }
    	
    }
    
 // Helper method used to determine which type of element the current token is     
    private static int checkToken(char token){
        switch (token) {
          
            case '}':
                return CURLY_CLOSED;
            case ',':
                return COMMA;
            case '"':
                return STRING;
            case '0': case '1': case '2': case '3': case '4':
            case '5': case '6': case '7': case '8': case '9':
            case '-':
                return NUMBER;
            case ':':
                return COLON;
            default: return 12;
        }
 
    }
     
     
}