lambda 2/1 3x3 P 1/3 at 0/1,0/1 3x2 P 1/3 at 1/1,1/3 1x1 P 1/3 at 1/1,2/3 1x1 P 1/3 at 4/3,1/3 1x1 P 1/3 at 5/3,0/3 refresh 1x2 P 1/6 at 11/6,0/1 1x2 P 1/6 at 11/6,0/1 1x2 P 1/6 at 11/6,0/1