INTEGER Input: The I Descriptor

The Iw and Iw.m descriptors are used for INTEGER input; however, the effect of Iw.d is identical to that of Iw. Therefore, we shall only discuss Iw. The general form of the Iw descriptor is as follows:

rIw

The meaning of r, w and m are:

Examples

Suppose we have the following input and the system ignores spaces.
         1    1    2
....5....0....5....0
12 34  56  78  90