hostcounter=1
for a in range-of-a
do
   for b in range-of-b
   do
      for c in range-of-c
      do
         some stuff
         with a b and c
      done
   done
   increment hostcounter by 1
   check if hostcounter is 90
   if hostcounter is 90, set hostcounter to 1 again
done