d2_5

#include <iostream>
using namespace std;

bool LeapYearCheck (unsigned years)
{
    if (((years % 4 == 0) && (years % 100 != 0)) || (years % 400 == 0))
    {
        return true;
    }
    else
    {
        return false;
    }
}

int main()
{
    long long int sec;
    long long int minutes = 0;
    long long int hours = 0;
    long long int days = 1;
    long int months = 1;
    long int years = 1970;

    cin >> sec;

    while (sec > 60)
    {
        sec -= 60;
        minutes++;
    }
    while (minutes > 60)
    {
        minutes -= 60;
        hours++;
    }
    while (hours > 24)
    {
        hours -= 24;
        days++;
    }
    while (days > 1)
    {
        if (LeapYearCheck(years) == true)
        {
            if (days <= 31)
            {
                months *= 1;
            }
            else if (31 < days && days <= 60)
            {
                days -= 31;
                months++;
            }
            if (60 < days && days <= 91)
            {
                days -= 60;
                months++;
            }
            else if (91 < days && days <= 121)
            {
                days -= 91;
                months++;
            }
            else if (121 < days && days <= 152)
            {
                days -= 121;
                months++;
            }
            else if (152 < days && days < 182)
            {
                days -= 152;
                months++;
            }
            else if (182 < days && days <= 213)
            {
                days -= 182;
                months++;
            }
            else if (213 < days && days <= 244)
            {
                days -= 213;
                months++;
            }
            else if (244 < days && days <= 274)
            {
                days -= 244;
                months++;
            }
            else if (274 < days && days <= 305)
            {
                days -= 274;
                months++;
            }
            else if (305 < days && days <= 335)
            {
                days -= 305;
                months++;
            }
            else if (335 < days && days <= 366)
            {
                days -= 335;
                months++;
            }
            else if (days > 366)
            {
                days -= 365;
                months -= 11;
                years++;
            }

        }
        else if (LeapYearCheck(years) == false)
        {
            if (days <= 31)
            {
                months *= 1;
            }
            else if (31 < days && days <= 59)
            {
                days -= 31;
                months++;
            }
            else if (59 < days && days <= 90)
            {
                days -= 59;
                months++;
            }
            else if (90 < days && days <= 120)
            {
                days -= 90;
                months++;
            }
            else if (120 < days && days <= 151)
            {
                days -= 120;
                months++;
            }
            else if (151 < days && days <= 181)
            {
                days -= 151;
                months++;
            }
            else if (181 < days && days <= 212)
            {
                days -= 181;
                months++;
            }
            else if (212 < days && days <= 243)
            {
                days -= 212;
                months++;
            }
            else if (243 < days && days <= 273)
            {
                days -= 243;
                months++;
            }
            else if (273 < days && days <= 304)
            {
                days -= 273;
                months++;
            }
            else if (304 < days && days <= 334)
            {
                days -= 304;
                months++;
            }
            else if (334 < days && days <= 365)
            {
                days -= 334;
                months++;
            }
            else if (days > 365)
            {
                days -= 364;
                months -= 11;
                years++;
            }
        }
    }
    cout << days << "." << months << "." << years << " " << hours << ":" << minutes << ":" << sec << " ";
    return 0;
}