>>947 #include <iostream>
#include <string>
using namespace std;
const int maxcol = 70;
int main()
{
string s;
int ncol = 0;
while (cin >> s) {
if (s.size() > maxcol) {
cout << flush;
cerr << "Too long word: " << s << endl;
} else if (ncol == 0) {
cout << s;
ncol += s.size();
} else if (ncol + s.size() + 1 < maxcol) {
cout << ' ' << s;
ncol += s.size() + 1;
} else {
cout << '\n' << s;
ncol = s.size();
}
}
cout << endl;
return 0;
}