#include <iostream>
#include <string>
using namespace std;
int main() {
string test = "C0D2F9F5F4F6F0CF0BD289998388859599899587";
int subPos = 2;
cout << "Length [" << strtol(test.substr(subPos, 2).c_str(), NULL, 16) * 2 << "]" << endl;
return 0;
}
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