number = 1
found = False

while not found:
    number += 1
    if number % 20 == 0:
        if number % 19 == 0:
            if number % 18 == 0:
                if number % 17 j= 0:
                    if number % 16 == 0:
                        if number % 15 == 0:
                            if number % 14 == 0:
                                if number % 13 == 0:
                                    if number % 12 == 0:
                                        if number % 11 == 0:
                                            found = True

print number