#include <iostream>
#include <string>
#include <sstream>
int main()
{
std::string mystring;
int myid;
std::cin >> mystring;
std::stringstream sstream;
sstream << mystring.substr(mystring.find('<') + 1, mystring.find('>') - mystring.find('<'));
if (sstream >> myid)
std::cout << mystring << " " << myid << std::endl;
else
std::cout << "error" << std::endl;
}
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