func f(m[]int)([]int,[]int,[]int){v:=0
g:=func(l[]int)[]int{p:=make([]int,len(l))
for i:=range^-len(l){p[i+1]=p[i]+l[i]}
return p}
l:=g(m)
p,o:=l,l
for i:=range l{l[i]=2}
for v<1{v=1
p=g(l)
o=g(l)
for i,u:=range m{y:=p[u]-p[i]
o[i]=y
if y*y>>l[i]>0{l[i]+=2
v=0
break}}}
return p,l,o}