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