; total time: 51.11
; plan length: 104
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(board person10 plane1 city14)
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(refuel plane5 city9 fl0 fl1)
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(refuel plane4 city15 fl0 fl1)
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(refuel plane2 city1 fl2 fl3)
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(fly plane2 city10 city9 fl2 fl1)
(fly plane1 city7 city11 fl1 fl0)
(debark person15 plane2 city9)
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(fly plane1 city11 city6 fl1 fl0)
(debark person19 plane2 city2)
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(debark person11 plane1 city6)
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(fly plane2 city2 city0 fl1 fl0)
(board person6 plane2 city0)
(refuel plane2 city0 fl0 fl1)
(fly plane2 city0 city13 fl1 fl0)
(debark person6 plane2 city13)
(refuel plane2 city13 fl0 fl1)
(fly plane2 city13 city6 fl1 fl0)
