import re

with open('input', 'r') as f:
    arrival = int(f.readline())
    buses = list(map(int, re.findall(r'[0-9]+', f.readline().strip())))

earliest = None
earliest_bus = None

print(f'{arrival=}')

for bus in buses:
    wait = bus - arrival % bus
    wait = 0 if wait == bus else wait
    if earliest is None or wait < earliest:
        earliest = wait
        earliest_bus = bus
    print(bus, wait)

print(f'{earliest=} {earliest_bus=}')
print('Solution')
print(earliest * earliest_bus)