Siblings Joe, Randy and Sara grandfather died, leaving each of them an amount of 100. Rather than receiving their inheritance in a lump sum, they are receiving, from the estate, annual cash flows described by CF(t) = P(0.2^(t-s)), if t >= s, and zero otherwise, where Joe had P=102 and s=1, Randy had P=120 and s=3, and Sara had P=260 and s=5. Order the siblings according to ascending annual effective yield rates.