Plotting graphs on a dumb (vt100) terminal 

You have a client who is a mathematician and wants you to write a program to plot graphs. Unfortunately, all he has is a vt100 (i.e. ASCII, non-graphic) terminal that connects to the department server. This terminal can display 41 lines of text at a time, and each line has 61 characters. Your graph plotting program must work on this setup.

Your current task is to write a program that plots only linear functions -- you need to see how graphs look on such a terminal, before proceeding further, Remembering that the equation for a linear function is y=ax + b, you see that you need two inputs a,b. You can assume that the range of x and y for which the function needs to be plotted are 0 <= x <= 6.0, and 0 <= y <= 40. Each point on the graph is marked with a "*" and the axes are marked with the characters "|" and "-" (see the sample output). The graph has 60 points, one for each non-zero value of x. Each point is rounded to the nearest character; e.g. y=4.51 for some x implies that a star be drawn corresponding to y=5. If a point is out of range (i.e. if y>40), the point can be ignored. For simplicity, all non-graph points are blanks (" ") in the output file. Any point that lies on an axis is not plotted.

Input 

The input has two floating point numbers a,b (a,b > 0).

Output 

The output will be the plot of the line on the 60x40 terminal. Note that each line, including the last one (the x-axis), has a newline at the end of it.

Sample Input  

10.0 1.0

Sample Output  

|                                      *                     
|                                     *                      
|                                    *                       
|                                   *                        
|                                  *                         
|                                 *                          
|                                *                           
|                               *                            
|                              *                             
|                             *                              
|                            *                               
|                           *                                
|                          *                                 
|                         *                                  
|                        *                                   
|                       *                                    
|                      *                                     
|                     *                                      
|                    *                                       
|                   *                                        
|                  *                                         
|                 *                                          
|                *                                           
|               *                                            
|              *                                             
|             *                                              
|            *                                               
|           *                                                
|          *                                                 
|         *                                                  
|        *                                                   
|       *                                                    
|      *                                                     
|     *                                                      
|    *                                                       
|   *                                                        
|  *                                                         
| *                                                          
|*                                                           
|                                                            
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