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address = 0x00000000000000000000000005B38Da6a701c568545dCfcB03FcB875f56beddC4
last = "19c1c82343bff459"
target = cal_target(address)[2:-1]
find(last, target)
想请教一下这个last参数是如何得到的，是攻击合约的字节码经过tag函数以后的结果吗？

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