; total time: 6.65
; plan length: 77
(fly plane4 city11 city0 fl3 fl2)
(fly plane3 city4 city7 fl5 fl4)
(board person1 plane4 city0)
(board person2 plane1 city14)
(board person4 plane3 city7)
(board person6 plane1 city14)
(board person8 plane4 city0)
(fly plane4 city0 city4 fl2 fl1)
(debark person1 plane4 city4)
(board person5 plane4 city4)
(board person7 plane4 city4)
(fly plane4 city4 city12 fl1 fl0)
(board person3 plane4 city12)
(debark person5 plane4 city12)
(board person12 plane5 city15)
(fly plane5 city15 city3 fl2 fl1)
(board person9 plane5 city3)
(board person11 plane5 city3)
(fly plane5 city3 city9 fl1 fl0)
(debark person9 plane5 city9)
(board person15 plane3 city7)
(board person16 plane5 city9)
(board person17 plane3 city7)
(board person19 plane2 city11)
(fly plane1 city14 city0 fl5 fl4)
(debark person6 plane1 city0)
(board person20 plane1 city0)
(fly plane1 city0 city1 fl4 fl3)
(board person14 plane1 city1)
(fly plane1 city1 city10 fl3 fl2)
(board person13 plane1 city10)
(debark person14 plane1 city10)
(fly plane1 city10 city11 fl2 fl1)
(debark person2 plane1 city11)
(fly plane1 city11 city13 fl1 fl0)
(debark person20 plane1 city13)
(refuel plane1 city13 fl0 fl1)
(fly plane1 city13 city2 fl1 fl0)
(debark person13 plane1 city2)
(refuel plane1 city2 fl0 fl1)
(fly plane1 city2 city5 fl1 fl0)
(board person18 plane1 city5)
(refuel plane1 city5 fl0 fl1)
(fly plane1 city5 city1 fl1 fl0)
(debark person18 plane1 city1)
(refuel plane1 city1 fl0 fl1)
(fly plane1 city1 city14 fl1 fl0)
(refuel plane2 city11 fl0 fl1)
(fly plane2 city11 city5 fl1 fl0)
(debark person19 plane2 city5)
(fly plane3 city7 city1 fl4 fl3)
(debark person17 plane3 city1)
(fly plane3 city1 city12 fl3 fl2)
(debark person4 plane3 city12)
(fly plane3 city12 city14 fl2 fl1)
(debark person15 plane3 city14)
(fly plane3 city14 city7 fl1 fl0)
(refuel plane4 city12 fl0 fl1)
(fly plane4 city12 city0 fl1 fl0)
(debark person3 plane4 city0)
(refuel plane4 city0 fl0 fl1)
(fly plane4 city0 city13 fl1 fl0)
(debark person8 plane4 city13)
(refuel plane4 city13 fl0 fl1)
(fly plane4 city13 city5 fl1 fl0)
(debark person7 plane4 city5)
(refuel plane5 city9 fl0 fl1)
(fly plane5 city9 city12 fl1 fl0)
(debark person16 plane5 city12)
(refuel plane5 city12 fl0 fl1)
(fly plane5 city12 city6 fl1 fl0)
(debark person12 plane5 city6)
(refuel plane5 city6 fl0 fl1)
(fly plane5 city6 city7 fl1 fl0)
(debark person11 plane5 city7)
(refuel plane5 city7 fl0 fl1)
(fly plane5 city7 city12 fl1 fl0)
