Present Delivery

houses = [int(x) for x in input().split('@')]
santa_idx = 0



while True:
    command = input()
    if command == 'Merry Xmas!':
        break
    else:
        command = command.split(' ')
        length = int(command[1])
        santa_idx += length
        if santa_idx >= len(houses):
            dif = santa_idx // len(houses)
            santa_idx -= len(houses) * dif
        if houses[santa_idx] <= 0:
            print(f'House {santa_idx} will have a Merry Christmas.')
        else:
            houses[santa_idx] -= 2

print(f"Santa's last position was {santa_idx}.")
if houses.count(0) == len(houses):
    print('Mission was successful.')
else:
    print(f'Santa has failed {len(houses) - houses.count(0)} houses.')