add characters at the beginning of a line in R

Question

I have a simple line like:

"667778767643555099889890"

I would like to insert "\1" to the beginning of this line obtaining a final result:

"\\1667778767643555099889890"

What is the command to do it in R?

Answer 1

paste0?

> string <- "667778767643555099889890"
> paste0("\\1", string)
[1] "\\1667778767643555099889890"