#include <iostream>
#include <vector>
#include <string>
#include <iterator>
#include <algorithm>
using namespace std;
int main()
{
vector<string> words;
copy(istream_iterator<string>(cin), istream_iterator<string>(), back_inserter(words));
for (int i = 0; i < words.size(); ++i)
cout << (i+1) << ": " << words[i] << endl;
return 0;
}
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