Code:

#include <iostream>
using namespace std;
int main()
{
    string s;
    int n;
    cin >> n;
    while (n--)
    {
        cin >> s;
        if (s.size() < 10) continue;
        cout << s[0] << s.size() - 2 << s[s.size() - 1] << endl;
    }
    return 0;
}