Subtask 
-------- 
Dilation SE8
Dilation SE3
 Erosion SE8
 Erosion SE3
Dilation SE1
Dilation SE5
 Erosion SE1
 Erosion SE5

Subtask 
-------- 
Dilation SE8
Dilation SE2
 Erosion SE8
 Erosion SE2
Dilation SE1
Dilation SE5
 Erosion SE1
 Erosion SE5

Subtask 
-------- 
Dilation SE7
Dilation SE7
 Erosion SE7
 Erosion SE7
Dilation SE1
Dilation SE5
 Erosion SE1
 Erosion SE5