p initial 4
p final 2
p final 1
n medial
n intial 2
n intial 1
n final 3
n final 2
n final 1
m medial 3
m medial 2
m medial 1
m intial 4
m intial 3
m intial 2
m intial 1
m final 2
m final 1
l final 3
l final 1
l medial 3
l medial 2
l medial 1
l intial 3
l intial 2
l intial 1
l final 2
k initial 4
k medial 4
k medial 3
