0
hahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahahhahahahahahahahahahahahaahah