Subtask 
-------- 
Dilation SE8
Dilation SE3
 Erosion SE8
 Erosion SE3
Iterate 2 Dilation SE1
Iterate 2  Erosion SE1

Subtask 
-------- 
Dilation SE8
Dilation SE2
 Erosion SE8
 Erosion SE2
Iterate 2 Dilation SE1
Iterate 2  Erosion SE1

Subtask 
-------- 
Dilation SE7
Dilation SE7
 Erosion SE7
 Erosion SE7
Iterate 2 Dilation SE1
Iterate 2  Erosion SE1