The X edit descriptor specifies a character position to the right of the current position in an I/O record. It takes the following form:
The n is a positive integer literal constant (with no kind parameter) indicating the nth character position to the right of the current character.
On output, the X edit descriptor does not output any characters when it appears at the end of a format specification; for example:
WRITE (6,99) K
99 FORMAT ('^ K=',I6,5X)
Note that the symbol ^ represents a nonprinting blank character.
This example writes a record of only 9 characters. To cause
n trailing blanks to be output at the end of a record,
specify a format of n('^').