friends, what is wrong with this?(I need to add the taken string to the list as a new field called "id", and output the result)

Question

str <- readLines('stdin')
x <- list("name"="James", "age"=42, "country"="USA")
y <- list("id"="1-2-3")
z<- c(x, y)
print(z)

Answer 1

1. You aren't using the input. You assign it to a variable, but never use the variable.
2. Where does the value "1-2-3" come from that you assign to "id"? That's probably where you should use the variable str.

Answer 2

now it's correct:

str <- readLines('stdin')
x <- list("name"="James", "age"=42, "country"="USA")
list <- c(x,"id"=str)
print(list)

Answer 3

Dankeschön :)