R2 c2

R2 c2R2 c2R2 c2R2 c2R2 c2R2 c2
R2 c2R2 c2R2 c2R2 c2R2 c2R2 c2
R2 c2R2 c2R2 c2R2 c2R2 c2R2 c2R2 c2R2 c2R2 c2R2 c2R2 c2R2 c2R2 c2R2 c2R2 c2R2 c2R2 c2R2 c2R2 c2R2 c2R2 c2R2 c2R2 c2R2 c2R2 c2R2 c2R2 c2R2 c2R2 c2R2 c2R2 c2R2 c2R2 c2R2 c2R2 c2R2 c2