alias sh {  
  //say 4,4==================
  //say 4,4==0,0==============4,4==
  //say 4,4==0,0==1,1==0,0==1,1======0,0==4,4==
  //say 4,4==0,0==1,1==0,0==1,1==0,0======4,4==
  //say 4,4==0,0==1,1==========0,0==4,4==
  //say 4,4==0,0======1,1==0,0==1,1==0,0==4,4==
  //say 4,4==0,0==1,1======0,0==1,1==0,0==4,4==
  //say 4,4==0,0==============4,4==
  //say 4,4==================
}