Double Period

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Problem

Draw two periods of the wave (vertically) given its amplitude and period.

Options

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now post-mortem time, all source codes will be revealed

Sample input:_

5 10

Sample output:

     *
        *
          *
          *
        *
      *
   *
 *
 *
   *
     *
        *
          *
          *
        *
      *
   *
 *
 *
   *

Sample input:_

10 30

Sample output:

          *
             *
               *
                *
                  *
                   *
                    *
                    *
                    *
                    *
                   *
                  *
                *
               *
             *
           *
        *
      *
     *
   *
  *
 *
 *
 *
 *
  *
   *
     *
      *
        *
          *
             *
               *
                *
                  *
                   *
                    *
                    *
                    *
                    *
                   *
                  *
                *
               *
             *
           *
        *
      *
     *
   *
  *
 *
 *
 *
 *
  *
   *
     *
      *
        *

Sample input:_

21 52

Sample output:

                     *
                        *
                           *
                             *
                               *
                                 *
                                   *
                                     *
                                       *
                                        *
                                         *
                                          *
                                          *
                                          *
                                          *
                                          *
                                         *
                                        *
                                       *
                                     *
                                   *
                                 *
                               *
                             *
                           *
                        *
                      *
                   *
                *
              *
            *
          *
        *
      *
    *
   *
  *
 *
 *
 *
 *
 *
  *
   *
    *
      *
        *
          *
            *
              *
                *
                   *
                     *
                        *
                           *
                             *
                               *
                                 *
                                   *
                                     *
                                       *
                                        *
                                         *
                                          *
                                          *
                                          *
                                          *
                                          *
                                         *
                                        *
                                       *
                                     *
                                   *
                                 *
                               *
                             *
                           *
                        *
                      *
                   *
                *
              *
            *
          *
        *
      *
    *
   *
  *
 *
 *
 *
 *
 *
  *
   *
    *
      *
        *
          *
            *
              *
                *
                   *

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