# Add time
def hms(s):
dd
= dict(zip([1, 60, 360], [float(i)
for i in s.split(':')]))
return sum([f/v
for v, f in dd.items()])
def main():
origTime
= raw_input("Enter clock time (hh:mm): ")
hrsAdd
= raw_input("Enter hours to add (hh:mm): ")
return hms(origTime) + hms(hrsAdd)
print main()