# ZeroJudge - f706: 時區 (Zone)
### 題目連結：https://zerojudge.tw/ShowProblem?problemid=f706
###### tags: `ZeroJudge` `模擬`

#include <iostream>
using namespace std;

int main() {
	//cin.sync_with_stdio(false); cin.tie(nullptr);
	int hour, minute, second, timeZones;
	while (cin >> hour >> minute >> second >> timeZones) {
		timeZones += 24;
        minute = minute + (timeZones & 1) * 30;
		hour = (hour + timeZones + (timeZones >> 1) + (minute >= 60 ? (minute -= 60, 1) : 0)) % 36;
		printf("%d:%02d:%02d\n", hour, minute, second);
	}
}