fun readInt () =
    valOf (TextIO.scanStream (Int.scan StringCvt.DEC) TextIO.stdIn)


val () =
    let
        val m = readInt ()
        val d = readInt ()

        val ans = if m < 8 then 23
                  else
                      (
                        if m = 8
                        then
                            (
                              if d < 22
                              then 23
                              else 24
                            )
                        else 24
                      )
    in
        print (Int.toString ans ^ "\n")
    end