#include <iostream>
using namespace std;
int convertTime(string time)
{
int timeAfterConverting;
timeAfterConverting = atoi(time.substr(0, time.find(":")).c_str()) * 60;
timeAfterConverting += atoi(time.substr(time.find(":") + 1).c_str());
return timeAfterConverting;
}
int main()
{
string timeOfSunset, timeOfSunrise, currentTime;
int timeOfSunriseAfterConvert, timeOfSunsetAfterConvert, currentTimeAfterConvert;
cin >> timeOfSunrise >> timeOfSunset >> currentTime;
timeOfSunriseAfterConvert = convertTime(timeOfSunrise);
timeOfSunsetAfterConvert = convertTime(timeOfSunset);
currentTimeAfterConvert = convertTime(currentTime);
if (currentTimeAfterConvert >= timeOfSunsetAfterConvert)
{
cout << "noc" << endl;
}
if (currentTimeAfterConvert < timeOfSunsetAfterConvert && currentTimeAfterConvert >= timeOfSunriseAfterConvert)
cout << "dzien" << endl;
}
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