R version 2.11.1 (2010-05-31)
Copyright (C) 2010 The R Foundation for Statistical Computing
ISBN 3-900051-07-0

R is free software and comes with ABSOLUTELY NO WARRANTY.
You are welcome to redistribute it under certain conditions.
Type 'license()' or 'licence()' for distribution details.

R is a collaborative project with many contributors.
Type 'contributors()' for more information and
'citation()' on how to cite R or R packages in publications.

Type 'demo()' for some demos, 'help()' for on-line help, or
'help.start()' for an HTML browser interface to help.
Type 'q()' to quit R.

> x <- c(-1s,1s,1s,-3s,1s,0s,-1s,-1s,0s,-1,0,-4,-4,0,0,-4,0,-3,-2,-2,1,1,-3,1,1,1,-3,-3,0,0,-1,-1,0,-2,0)
Error: unexpected symbol in "x <- c(-1s"
Execution halted