TG HSGHN L9 2022-2023

#include <bits/stdc++.h>

using namespace std;
using ll = long long;

constexpr int N = 1e5 + 5;
int t;

void Read()
{
    cin >> t;
}

void Solve()
{
    t += 480;

    if ((t / 60) < 10)
        cout << 0;
    cout << t / 60;

    cout << ":";

    if (t % 60 < 10)
        cout << 0;
    cout << t % 60;

    cout << "\n";
}

int32_t main()
{
    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    int n;
    for (cin >> n; n--;)
    {
        Read();
        Solve();
    }
}