randomize         1
addRandom        40     0 20000
randomize         1
deleteRandom     20     0 20000
#
randomize         2
addRandom        40    40 20000
randomize         2
deleteRandom     20    40 20000
#
randomize         3
addRandom        40    80 20000
randomize         3
deleteRandom     20    80 20000
#
randomize         4
addRandom        40   120 20000
randomize         4
deleteRandom     20   120 20000
#
randomize         5
addRandom        40   160 20000
randomize         5
deleteRandom     20   160 20000
#
randomize         6
intersectRandom 100 20000
#
randomize         7
nearestRandom   100
#
randomize         8
nearestNRandom  100     5 
#
randomize         9
containsRandom   100 100000