R chi

R chiR chiR chiR chiR chiR chi
R chiR chiR chiR chiR chiR chi
R chiR chiR chiR chiR chiR chiR chiR chiR chiR chiR chiR chiR chiR chiR chiR chiR chiR chiR chiR chiR chiR chiR chiR chiR chiR chiR chiR chiR chiR chiR chiR chiR chiR chiR chiR chi