#include <iostream>
#include <string>
using namespace std;
int main() {
std::string s("[SectionName]");
size_t first = s.find_first_of('[');
size_t last = s.find_last_of(']');
if (string::npos != first && string::npos != last)
{
std::cout << s.substr(first + 1, last - first - 1);
}
return 0;
}
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