#include <iostream>
#include <sstream>
#include <string>
using namespace std;
int main() {
istringstream ch{"this is-a\tstring.It has\n6 words."};
string w;
for(auto i = 1; ch >> w; ++i) {
cout << i << ": " << w << endl;
}
return 0;
}
I2luY2x1ZGUgPGlvc3RyZWFtPgojaW5jbHVkZSA8c3N0cmVhbT4KI2luY2x1ZGUgPHN0cmluZz4KdXNpbmcgbmFtZXNwYWNlIHN0ZDsKCmludCBtYWluKCkgewoJaXN0cmluZ3N0cmVhbSBjaHsidGhpcyBpcy1hXHRzdHJpbmcuSXQgaGFzXG42IHdvcmRzLiJ9OwoJc3RyaW5nIHc7CgkKCWZvcihhdXRvIGkgPSAxOyBjaCA+PiB3OyArK2kpIHsKCQljb3V0IDw8IGkgPDwgIjogIiA8PCB3IDw8IGVuZGw7Cgl9CglyZXR1cm4gMDsKfQ==