public static void Main()
string num = Console.ReadLine();
string[] numsplit = num.Split(' ');
int[] innumsplit = Array.ConvertAll(numsplit, Int32.Parse);
int start = (innumsplit[0] * 60) + innumsplit[1];
int end = (innumsplit[2] * 60) + innumsplit[3];
int totalminute = end - start;
int hour= totalminute / 60;
int minute = totalminute-(hour * 60);
Console.WriteLine(hour+" "+minute);