flghts_func

def flights(*args):
    destinations = {}
    for idx in range(0, len(args), 2):
        destination = args[idx]
        if destination == "Finish":
            return destinations
        passengers = int(args[idx+1])
        if destination not in destinations:
            destinations[destination] = 0
        destinations[destination] += passengers
    return destinations


print(flights('Vienna', 256, 'Vienna', 26, 'Morocco', 98, 'Paris', 115, 'Finish', 'Paris', 15))
print(flights('London', 0, 'New York', 9, 'Aberdeen', 215, 'Sydney', 2, 'New York', 300, 'Nice', 0, 'Finish'))
print(flights('Finish', 'New York', 90, 'Aberdeen', 300, 'Sydney', 0))