R1=1,4,3,4,2,4,1,4,2,4,3,4,1,4,3,4,2,4 R2=1,4,3,4,2,4,1,4,2,4,3,4,1,4,3,4,2,4 R3=1,4,3,4,2,4,1,4,2,4,3,4,1,4,3,4,2,4