S+P-1S+P-2S+P-3S+P-4S+P-5S+P-6S+P-7S+P-8S+P-9S+P-10S+P-11S+P-12S+P-13S+P-14S+P-15S+P-16S+P-17S+P-18S+P-19S+P-20