Section 10,4: Repeat_Count

 You can apply the field descriptors I, O, Z, F, E, D, G, L, and A
 to a number of successive data fields by preceding the field
 descriptor with an unsigned integer constant (PARAMETER constants
 are not allowed) specifying the number of repetitions.  This
 constant is called a repeat count.

 For example, the following two statements are equivalent:

    20 FORMAT (E12.4,E12.4,E12.4,I5,I5,I5,I5)
    20 FORMAT (3E12.4,4I5)

 Similarly, you can apply a group of field descriptors repeatedly to
 data fields by enclosing these field descriptors in parentheses and
 preceding them with an unsigned integer constant.  The integer
 constant is called a group repeat count.  For example, the
 following two statements are equivalent:

    50 FORMAT (I8,I8,F8.3,E15.7,F8.3,E15.7,F8.3,E15.7,I5,I5)
    50 FORMAT (2I8,3(F8.3,E15.7),2(I5))

 An H or Q field descriptor, which could not otherwise be repeated,
 can be enclosed in parentheses and treated as a group repeat
 specification.