{Anna}Z3{Anna}Z2{Anna}Z4{Anna}Z{Anna}Z1{Anna}Z8{Anna}Z7{Anna}Z5{Anna}Z10{Anna}Z6{Anna}Z9{Anna}Z14{Anna}Z11{Anna}Z12{Anna}Z13{Anna}Z16{Anna}Z15{Anna}Z18{Anna}Z19{Anna}Z17