Oh, I forgot to paste the sequence :)

[Stefek Borkowski]

        Human Heart Fatty Acid-Binding Protein (H-FABP).
        What would you say the position of the only cysteine in the protein 
is (124 or 125?)
         1 mvdaflgtwk lvdsknfddy mkslgvgfat rqvasmtkpt tiiekngdil tlkthstfkn
       61 teisfklgve fdettaddrk vksivtldgg klvhlqkwdg qettlvreli dgkliltlth
      121 gtavctrtye kea