import utils
## this function will take any two times on the 24 hour clock
## and tell you the difference between them
def sandman(x, y):
## we start off by making x and y into strings
## we also set variables for the two segments of the strings (hours and minutes)
    x = str(x)
    x1 = x[0] + x[1]
    x2 = x[2] + x[3]
    y = str(y)
    y1 = y[0] + y[1]
    y2 = y[2] + y[3]
## this if is what happens if x is greater than y
    if int(x) > int(y):
## another embedded if for if the minutes on the first time
## are greater than on the second time
        if int(x2) > int(y2):
            f1 = int(x1) - int(y1)
            f2 = int(x2) - int(y2)
            print f1, "hours", f2, "minutes"
## an elif for if the minutes on the second time are greater than
## the minutes on the first time
        elif int(y2) > int(x2):
            f1 = (int(x1) - int(y1)) - 1
            f2 = 60 - (int(y2) - int(x2))
## these 2 variables above are to make sure it dosent display over 60 minutes
            print f1, "hours", f2, "minutes"
## this last elif is if the minutes are equal
        elif int(x2) == int(y2):
            f1 = int(x1) - int(y1)
            print f1, "hours"
## this if is for y greater than x
    elif int(y) > int(x):
## these following ifs and elifs are the same as above but for y greater than x
## readd the above comments for details
        if int(y2) > int(x2):
            f1 = int(y1) - int(x1)
            f2 = int(y2) - int(x2)
            print f1, "hours", f2, "minutes"
        elif int(x2) > int(y2):
            f1 = (int(y1) - int(x1)) - 1
            f2 = 60 - (int(x2) - int(y2))
            print f1, "hours", f2, "minutes"
        elif int(y2) == int(x2):
            f1 = int(y1) - int(x1)
            print f1, "hours"
## and at last if the user enters two times which are equivalent to eachother
    else:
        print "These times are equal."
x = utils.get_time('Please enter the first time value:\n', 'Please read the instruction more carefully and try again.')
y = utils.get_time('Please enter the second time value:\n', 'Please read the instruction more carefully and try again.')
sandman(x, y)