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A skeleton of the alvarezsauroid Alnashetri cerropoliciensis—representing a highly complete alvarezsauroid skeleton from South America—provides evidence on the evolution of the peculiar anatomy and miniaturization within this unusual theropod dinosaur clade.
输入：target = 12, position = [10,8,0,5,3], speed = [2,4,1,1,3]
Step 2: Route on the Abstract Graph (The "Highway" Part):