.
                               rocks
                      rocks rocks rocks
                    rocks rocks rocks ro
                   rocks rocks rocks roc
                   rocks rocks rocks roc
                      rocks rocks rocks
                      rocks rocks rocks
                      rocks rocks rocks
                      rocks rocks rocks
                      rocks rocks rocks
                      rocks rocks rocks
                      rocks rocks rocks
                      rocks rocks rocks
                      rocks rocks rocks
                      rocks rocks rocks
                      rocks rocks rocks
                      rocks rocks rocks
         rocks rocks                  rocks rocks
    rocks rocks rocks       rocks rocks rocks
  rocks rocks rocks ro  cks rocks rocks rock
    rocks rocks rocks       rocks rocks rocks
        rocks rocks                   rocks rocks