βββββββ 500 [β] ββββββββ 600 [β] βββββββββ 700 [β] ββββββββββ 800 [β] ββββββββββββ 900 [β] βββββββββββββ 1000 [β] βββββββββββββ 1100[β] βββββββββββββββ 1200[]