8
1:{[90 , 70],  dn
   [260,220]}  up
2:{[180, 95],  dn
   [360,150]}  up
3:{[252, 75],  dn
   [307,105]}  up
4:{[300, 60],  dn
   [370, 85]}  up
5:{[110,105],  dn
   [200,200]}  up
6:{[ 80,190],  dn
   [125,250]}  up
7:{[290,220],  dn
   [360,260]}  up
8:{[145, 50],  dn
   [190,250]}  up