R 3 t 2

R 3 t 2R 3 t 2R 3 t 2R 3 t 2R 3 t 2R 3 t 2
R 3 t 2R 3 t 2R 3 t 2R 3 t 2R 3 t 2R 3 t 2
R 3 t 2R 3 t 2R 3 t 2R 3 t 2R 3 t 2R 3 t 2R 3 t 2R 3 t 2