Exam Schedule

#include <iostream>
#include <string>

using namespace std;

int main() {
    int hours, minutes;
    cin >> hours >> minutes;

    string dayPart;
    cin >> dayPart;

    int hoursAdded, minutesAdded;
    cin >> hoursAdded >> minutesAdded;

    int result = (hours + hoursAdded) * 60 + minutes + minutesAdded;
    int totalHours = result / 60 % 24;
    int totalMinutes = result % 60;

    dayPart = totalHours >= 12 ? (dayPart == "AM" ? "PM" : "AM") : dayPart;
    totalHours -= totalHours > 12 ? 12 : 0;

    printf("%.2d:%.2d:%s\n", totalHours, totalMinutes, dayPart.c_str());

    return 0;
}