#include <iostream>
#include <sstream>
#include <string>
int main()
{
std::string str = "15 50 91";
std::istringstream instr(str);
std::string w;
while (instr >> w)
std::cout << w << std::endl;
return 0;
}
I2luY2x1ZGUgPGlvc3RyZWFtPgojaW5jbHVkZSA8c3N0cmVhbT4KI2luY2x1ZGUgPHN0cmluZz4KCmludCBtYWluKCkKewogICAgc3RkOjpzdHJpbmcgc3RyID0gIjE1IDUwIDkxIjsKICAgIAogICAgc3RkOjppc3RyaW5nc3RyZWFtIGluc3RyKHN0cik7CiAgICBzdGQ6OnN0cmluZyB3OwogICAgCiAgICB3aGlsZSAoaW5zdHIgPj4gdykKICAgICAgICBzdGQ6OmNvdXQgPDwgdyA8PCBzdGQ6OmVuZGw7CiAgICAKICAgIHJldHVybiAwOwp9