#j#ʐ{/2e* ? (Unite 2 pages): * 1 4 5 8 9 12 13 -> #4to1/2e* 2-sided prining with[Unite 2 pages]:* 1 4 5 8 9 12 13 16 17 -> Mz+=3,z/=4;x+=4;x-1,x;