#include <iostream>
#include <string>
#include <sstream>
using namespace std;
int main() {
string text = "1text3 and 9wjkhk2 keyboard 3txcym8";
stringstream ss(text);
string buffer;
while (ss >> buffer)
{
if (isdigit(buffer.front()) && isdigit(buffer.back()))
{
text.erase(text.find(buffer), buffer.length());
}
}
cout << text << endl;
return 0;
}
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