output_description: Print the length of the period in which he can start studying, as an integer.
  
  * * *
input_description: Input is given from Standard Input in the following format:
  
      
      
      H_1 M_1 H_2 M_2 K
attempt: h1, m1, h2, m2, x = map(int, input().split())
  # a=list(map(int,input().split()))
  a = h2 - h1
  b = 60 - m1 + m2
  a -= 1
  t = a * 60 + b - x
  print(t)
  
problem_description: Statement
  
  In this problem, we use the 24-hour clock.
  
  Takahashi gets up exactly at the time H_1 : M_1 and goes to bed exactly at the
  time H_2 : M_2. (See Sample Inputs below for clarity.) He has decided to study
  for K consecutive minutes while he is up. What is the length of the period in
  which he can start studying?
samples: [{"input": "10 0 15 0 30", "output": "270\n    \n\nTakahashi gets up at exactly ten in the morning and goes to bed at exactly\nthree in the afternoon. It takes 30 minutes to do the study, so he can start\nit in the period between ten o'clock and half-past two. The length of this\nperiod is 270 minutes, so we should print 270.\n\n* * *"}, {"input": "10 0 12 0 120", "output": "0\n    \n\nTakahashi gets up at exactly ten in the morning and goes to bed at exactly\nnoon. It takes 120 minutes to do the study, so he has to start it at exactly\nten o'clock. Thus, we should print 0."}]