NUMBER:  64

  ERROR CODE:  F

  MESSAGE TEXT:  input conversion error

  EXPLANATION:  During a formatted input operation, an invalid
  character was detected in an input field, or the input value
  overflowed the range representable in the input variable.  The
  value of the variable was set to zero.

  The ERR transfer is taken after completion of the I/O statement for
  this error number.  The resulting file status and record position
  are the same as if no error had occurred.  However, other I/O
  errors take the ERR transfer as soon as the error is detected, so
  file states and record position are undefined.