R (repeat) Command

R[number-of-times]: Use the R (repeat) line command to repeat a line or block of lines directly after the last line to be repeated.
number-of-times: Specifies the number of times a line or block of lines is repeated. The default is 1.
R: Specifies a single line to be repeated.
Rn: Specifies a single line to be repeated n times.
RR: Specifies the first and last lines of a block to be repeated one time.

Rules for Using the R (repeat) Line Command

Pair each RR number-of-lines with another RR number-of-lines to complete a block command.

If number-of-lines specified in the RR block command differ, the greater number is used.
No other line commands can be used on lines being repeated.