A_Love_Story.cpp

/**
 * Author: E4GL3
 * GitHub : https://github.com/e4GL3X/
 * Created: 2025-10-03
 *
 */

#include <bits/stdc++.h>
using namespace std;

int main()
{
    ios::sync_with_stdio(false);
    cin.tie(nullptr);

    int t;
    cin >> t;
    while (t--)
    {
        string s;
        cin >> s;
        int count = 0;
        for (int i = 0; i < 10; i++)
        {
            if (s[i] != "codeforces"[i])
                count++;
        }
        cout << count << "\n";
    }
    return 0;
}