I need help writing a simple code in R studos that does the following, Let b=1101. Extract the last three characters. Convert the last three characters into decimal and store it in a variable called tempVal. My code is written below but the issue I am having is when i convert it from utf8 to int it is giving me 3 seperate integers.

b <- '1101' v45 <- unlist(strsplit(b, "")) v45 extr <- c(v45[2:4]) #extracting last three characters extr reconstruct <- paste(extr, collapse = "") reconstruct tempVal <- utf8ToInt(reconstruct) tempVal