R2 r 0

R2 r 0
R2 r 0
R2 r 0
R2 r 0
R2 r 0. R2 r 0
R2 r 0
R2 r 0
R2 r 0
R2 r 0
R2 r 0
R2 r 0
R2 r 0
R2 r 0
R2 r 0
R2 r 0
R2 r 0
R2 r 0. R2 r 0
R2 r 0
R2 r 0
R2 r 0
R2 r 0
R2 r 0
R2 r 0
R2 r 0
R2 r 0
R2 r 0. R2 r 0
R2 r 0
R2 r 0
R2 r 0
R2 r 0
R2 r 0
R2 r 0
R2 r 0
R2 r 0
R2 r 0
R2 r 0
R2 r 0
R2 r 0. R2 r 0
R2 r 0
R2 r 0. R2 r 0