Section 10,21: I

 Iw[.m] (Integer Editing)

 On input, I transfers "w" characters from the external field and
 assigns them, as an integer value, to the corresponding I/O list
 element (which must be integer or logical data type).  The external
 data must have the form of an integer constant; it cannot contain a
 decimal point or exponent field.

 If the first nonblank character of the external field is a minus
 sign, the field is treated as a negative value.  If the first
 nonblank character is a plus sign or if no sign appears in the
 field, the field is treated as a positive value.

 On output, I transfers the value of the corresponding I/O list
 element, right-justified, to an external field that is "w"
 characters long.  If the value does not fill the field, leading
 spaces are inserted; if the value is too large for the field, the
 entire field is filled with asterisks.  "w" must be large enough to
 include a possible minus sign.  If "m" is present, the external
 field consists of at least "m" digits and, if necessary, is zero
 filled on the left.