Experimentation

noise :  int ran = 0

noise :  int ran = 2

 noise :  int ran =4

 noise :  int ran =6

noise :  int ran = 8

noise :  int ran = 10

 noise :  int ran =12

noise :  int ran = 14

 noise :  int ran =16

 noise :  int ran = 18

 noise :  int ran = 20

 noise :  int ran = 40

noise :  int ran = 80

noise :  int ran = 800