old_contents: 
  HOld
  
new_contents: class StairClimb:
  	def stridesTaken(self, flights, stairsPerStride):
  		total_strides = 0
  		for flight in flights:
  			leftover = flight % stairsPerStride
  			strides = flight / stairsPerStride
  			if(leftover > 0):
  				strides += 1
  			total_strides += 2			
  			total_strides += strides 
  		
  		total_strides -= 2 #Remove top level change
  		return total_strides
  
subject: Update stairclimb.py