2f(dp(1)tk(R2R1,23),50)<(1)(dp(1)tl(R2R1,23),80)<(1)(dp(1)tj(R2R1,23),80)<(1)(dp(1)ti(R2R1,23),110)Adp(1)Rdp(1)RA3((R4R3,23),40)Asi5R2::::yyfxm