Answer should be 1 to 255
,[                    take INPUT and begin main loop; process until EOF
  >+++++[>++++++++<-] insert 40 "(" into memory (MEM: INPUT _TMP_ 40 ACC)
  >[-<<->>]<<         subtract 40 from INPUT and go there
  [>>>--<<<[-]]       if INPUT not 0: subtract 2 from ACC and zero INPUT
  >>>+<<<             if we skipped inc ACC; otherwise ACC ends up decremented
  ,                   read some more input
]                     loop continues until we hit EOF
  >>>+                move over to ACC and add one for the newline
print integer function (copied from the internet)
  [>>+>+<<<-]>>>[<<<+>>>-]<<+>[<->[>++++++++++<[->-[>+>>]>[+[-<+>]>+>>]<<<<<]>[-]
  ++++++++[<++++++>-]>[<<+>>-]>[<<+>>-]<<]>]<[->>++++++++[<++++++>-]]<[.[-]<]
  ++++++++++.