Hello, Codeforces!

You know that the task statements in IOI are written by the "IOI Translation System" used since 2017. Its Github link is here: Translation

I want to install this system on my computer for my personal use, but I don't know how, although I read the instructions. If anyone knows the procedures to install them on the computer, please help me. Thank you very much for your help.

if you are reading this blog, hi.

I have some problems with the "Div. 7" problem:

Here is the official code (from BledDest):

t = int(input())
for i in range(t):
    n = int(input())
    if n % 7 == 0:
        print(n)
    else:
        ans = -1
        for j in range(10):
            if (n - n % 10 + j) % 7 == 0:
                ans = n - n % 10 + j
        print(ans)

And here is my c++ code when I try to translate from Python $$$\rightarrow$$$ C++:

int n;
        cin >> n;
        if (n % 7 == 0) cout << n << '\n';
        else
        {
            int res = -1;
            for (int j = 0; j <= 10; j++)
            {
                if ((n - n % 10 + j) % 7 == 0)
                {
                    res = n - n % 10 + j;
                }
            }
            cout << res << '\n';

But, when I submit my C++ code, it gets the wrong answer on test 2 (on test case 52), you can check: 145516095

If you understand the reason why you can comment under this blog. Thank you very much for your help!