/\_____________/\       (    \
                      /   0                     0   \      \     \
                    (   ==         ^           ==   )     )     )
                    )----------------o---------------(    /    /
                 (                                          )/   /
               (        |      |               |     |        ) 
              /       (        )            (        )       \
            (        {           }         {           }        )
              -----------------------miau----------------