0fP(12)t(il,20)(d(R2R1,23),10)P(70)dP(12)(R2R1,23)(d(R2R1,23),10)P(70)dP(12)(R2R1,23)(d(R2R1,23),10)P(70)dP(12)(R2R1,23)(d(R2R1,23),10)CAdrr2ep(16)1Ar(d(R2R1,23),40)A2r1AR2::::::zZyyfx