Find total number of chairs (in the building).

def setup():
   one = [12, 24, 26, 28, 32]
   two = [14, 27, 29, 31, 34]
   three = [25, 26, 27, 36, 39]
   four = [16, 18, 15, 14, 13]
   b = [one, two, three, four]
   total(b)
 
def total(b):
   i_f = 0
   total = 0
   while(i_f < len(b)):
      i_r = 0
      while(i_r < len(b[i_f])):
         total = total + b[i_f][i_r]
         i_r = i_r +1
      i_f = i_f + 1
   print("Total is",total)
 
setup()