SUMMER_Lab02_4.c

// Baekjoon Online Judge # 2884

#include <stdio.h>

int main()
{
    int hour, minute;
    scanf("%d %d", &hour, &minute);

    minute -= 45;
    if (minute < 0)
    {
        hour--;
        minute += 60;
        if (hour < 0)
        {
            hour = 23;
        }
    }

    printf("%d %d\n", hour, minute);
    return 0;
}